19955280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 160

約数和(自身を含む): 67388544

約数和(自身を除く): 47433264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 67, 68, 73, 80, 85, 102, 120, 134, 136, 146, 170, 201, 204, 219, 240, 255, 268, 272, 292, 335, 340, 365, 402, 408, 438, 510, 536, 584, 670, 680, 730, 804, 816, 876, 1005, 1020, 1072, 1095, 1139, 1168, 1241, 1340, 1360, 1460, 1608, 1752, 2010, 2040, 2190, 2278, 2482, 2680, 2920, 3216, 3417, 3504, 3723, 4020, 4080, 4380, 4556, 4891, 4964, 5360, 5695, 5840, 6205, 6834, 7446, 8040, 8760, 9112, 9782, 9928, 11390, 12410, 13668, 14673, 14892, 16080, 17085, 17520, 18224, 18615, 19564, 19856, 22780, 24455, 24820, 27336, 29346, 29784, 34170, 37230, 39128, 45560, 48910, 49640, 54672, 58692, 59568, 68340, 73365, 74460, 78256, 83147, 91120, 97820, 99280, 117384, 136680, 146730, 148920, 166294, 195640, 234768, 249441, 273360, 293460, 297840, 332588, 391280, 415735, 498882, 586920, 665176, 831470, 997764, 1173840, 1247205, 1330352, 1662940, 1995528, 2494410, 3325880, 3991056, 4988820, 6651760, 9977640, 19955280]

約数ペア:

[(1, 19955280), (2, 9977640), (3, 6651760), (4, 4988820), (5, 3991056), (6, 3325880), (8, 2494410), (10, 1995528), (12, 1662940), (15, 1330352), (16, 1247205), (17, 1173840), (20, 997764), (24, 831470), (30, 665176), (34, 586920), (40, 498882), (48, 415735), (51, 391280), (60, 332588), (67, 297840), (68, 293460), (73, 273360), (80, 249441), (85, 234768), (102, 195640), (120, 166294), (134, 148920), (136, 146730), (146, 136680), (170, 117384), (201, 99280), (204, 97820), (219, 91120), (240, 83147), (255, 78256), (268, 74460), (272, 73365), (292, 68340), (335, 59568), (340, 58692), (365, 54672), (402, 49640), (408, 48910), (438, 45560), (510, 39128), (536, 37230), (584, 34170), (670, 29784), (680, 29346), (730, 27336), (804, 24820), (816, 24455), (876, 22780), (1005, 19856), (1020, 19564), (1072, 18615), (1095, 18224), (1139, 17520), (1168, 17085), (1241, 16080), (1340, 14892), (1360, 14673), (1460, 13668), (1608, 12410), (1752, 11390), (2010, 9928), (2040, 9782), (2190, 9112), (2278, 8760), (2482, 8040), (2680, 7446), (2920, 6834), (3216, 6205), (3417, 5840), (3504, 5695), (3723, 5360), (4020, 4964), (4080, 4891), (4380, 4556)]