19863480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:158

約数の個数: 256

約数和(自身を含む): 78382080

約数和(自身を除く): 58518600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 17, 20, 21, 24, 26, 28, 30, 34, 35, 39, 40, 42, 51, 52, 56, 60, 65, 68, 70, 78, 84, 85, 91, 102, 104, 105, 107, 119, 120, 130, 136, 140, 156, 168, 170, 182, 195, 204, 210, 214, 221, 238, 255, 260, 273, 280, 312, 321, 340, 357, 364, 390, 408, 420, 428, 442, 455, 476, 510, 520, 535, 546, 595, 642, 663, 680, 714, 728, 749, 780, 840, 856, 884, 910, 952, 1020, 1070, 1092, 1105, 1190, 1284, 1326, 1365, 1391, 1428, 1498, 1547, 1560, 1605, 1768, 1785, 1819, 1820, 2040, 2140, 2184, 2210, 2247, 2380, 2568, 2652, 2730, 2782, 2856, 2996, 3094, 3210, 3315, 3570, 3638, 3640, 3745, 4173, 4280, 4420, 4494, 4641, 4760, 5304, 5457, 5460, 5564, 5992, 6188, 6420, 6630, 6955, 7140, 7276, 7490, 7735, 8346, 8840, 8988, 9095, 9282, 9737, 10914, 10920, 11128, 11235, 12376, 12733, 12840, 13260, 13910, 14280, 14552, 14980, 15470, 16692, 17976, 18190, 18564, 19474, 20865, 21828, 22470, 23205, 23647, 25466, 26520, 27285, 27820, 29211, 29960, 30940, 33384, 36380, 37128, 38199, 38948, 41730, 43656, 44940, 46410, 47294, 48685, 50932, 54570, 55640, 58422, 61880, 63665, 70941, 72760, 76398, 77896, 83460, 89880, 92820, 94588, 97370, 101864, 109140, 116844, 118235, 127330, 141882, 146055, 152796, 165529, 166920, 185640, 189176, 190995, 194740, 218280, 233688, 236470, 254660, 283764, 292110, 305592, 331058, 354705, 381990, 389480, 472940, 496587, 509320, 567528, 584220, 662116, 709410, 763980, 827645, 945880, 993174, 1168440, 1324232, 1418820, 1527960, 1655290, 1986348, 2482935, 2837640, 3310580, 3972696, 4965870, 6621160, 9931740, 19863480]

約数ペア:

[(1, 19863480), (2, 9931740), (3, 6621160), (4, 4965870), (5, 3972696), (6, 3310580), (7, 2837640), (8, 2482935), (10, 1986348), (12, 1655290), (13, 1527960), (14, 1418820), (15, 1324232), (17, 1168440), (20, 993174), (21, 945880), (24, 827645), (26, 763980), (28, 709410), (30, 662116), (34, 584220), (35, 567528), (39, 509320), (40, 496587), (42, 472940), (51, 389480), (52, 381990), (56, 354705), (60, 331058), (65, 305592), (68, 292110), (70, 283764), (78, 254660), (84, 236470), (85, 233688), (91, 218280), (102, 194740), (104, 190995), (105, 189176), (107, 185640), (119, 166920), (120, 165529), (130, 152796), (136, 146055), (140, 141882), (156, 127330), (168, 118235), (170, 116844), (182, 109140), (195, 101864), (204, 97370), (210, 94588), (214, 92820), (221, 89880), (238, 83460), (255, 77896), (260, 76398), (273, 72760), (280, 70941), (312, 63665), (321, 61880), (340, 58422), (357, 55640), (364, 54570), (390, 50932), (408, 48685), (420, 47294), (428, 46410), (442, 44940), (455, 43656), (476, 41730), (510, 38948), (520, 38199), (535, 37128), (546, 36380), (595, 33384), (642, 30940), (663, 29960), (680, 29211), (714, 27820), (728, 27285), (749, 26520), (780, 25466), (840, 23647), (856, 23205), (884, 22470), (910, 21828), (952, 20865), (1020, 19474), (1070, 18564), (1092, 18190), (1105, 17976), (1190, 16692), (1284, 15470), (1326, 14980), (1365, 14552), (1391, 14280), (1428, 13910), (1498, 13260), (1547, 12840), (1560, 12733), (1605, 12376), (1768, 11235), (1785, 11128), (1819, 10920), (1820, 10914), (2040, 9737), (2140, 9282), (2184, 9095), (2210, 8988), (2247, 8840), (2380, 8346), (2568, 7735), (2652, 7490), (2730, 7276), (2782, 7140), (2856, 6955), (2996, 6630), (3094, 6420), (3210, 6188), (3315, 5992), (3570, 5564), (3638, 5460), (3640, 5457), (3745, 5304), (4173, 4760), (4280, 4641), (4420, 4494)]