19896240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{911}}^1$

素因数の和:947

約数の個数: 160

約数和(自身を含む): 75995136

約数和(自身を除く): 56098896

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 910, 911, 1040, 1092, 1365, 1456, 1560, 1680, 1820, 1822, 2184, 2730, 2733, 3120, 3640, 3644, 4368, 4555, 5460, 5466, 6377, 7280, 7288, 9110, 10920, 10932, 11843, 12754, 13665, 14576, 18220, 19131, 21840, 21864, 23686, 25508, 27330, 31885, 35529, 36440, 38262, 43728, 47372, 51016, 54660, 59215, 63770, 71058, 72880, 76524, 82901, 94744, 95655, 102032, 109320, 118430, 127540, 142116, 153048, 165802, 177645, 189488, 191310, 218640, 236860, 248703, 255080, 284232, 306096, 331604, 355290, 382620, 414505, 473720, 497406, 510160, 568464, 663208, 710580, 765240, 829010, 947440, 994812, 1243515, 1326416, 1421160, 1530480, 1658020, 1989624, 2487030, 2842320, 3316040, 3979248, 4974060, 6632080, 9948120, 19896240]

約数ペア:

[(1, 19896240), (2, 9948120), (3, 6632080), (4, 4974060), (5, 3979248), (6, 3316040), (7, 2842320), (8, 2487030), (10, 1989624), (12, 1658020), (13, 1530480), (14, 1421160), (15, 1326416), (16, 1243515), (20, 994812), (21, 947440), (24, 829010), (26, 765240), (28, 710580), (30, 663208), (35, 568464), (39, 510160), (40, 497406), (42, 473720), (48, 414505), (52, 382620), (56, 355290), (60, 331604), (65, 306096), (70, 284232), (78, 255080), (80, 248703), (84, 236860), (91, 218640), (104, 191310), (105, 189488), (112, 177645), (120, 165802), (130, 153048), (140, 142116), (156, 127540), (168, 118430), (182, 109320), (195, 102032), (208, 95655), (210, 94744), (240, 82901), (260, 76524), (273, 72880), (280, 71058), (312, 63770), (336, 59215), (364, 54660), (390, 51016), (420, 47372), (455, 43728), (520, 38262), (546, 36440), (560, 35529), (624, 31885), (728, 27330), (780, 25508), (840, 23686), (910, 21864), (911, 21840), (1040, 19131), (1092, 18220), (1365, 14576), (1456, 13665), (1560, 12754), (1680, 11843), (1820, 10932), (1822, 10920), (2184, 9110), (2730, 7288), (2733, 7280), (3120, 6377), (3640, 5466), (3644, 5460), (4368, 4555)]