2880020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:105

約数の個数: 96

約数和(自身を含む): 7620480

約数和(自身を除く): 4740460

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 26, 38, 44, 52, 53, 55, 65, 76, 95, 106, 110, 130, 143, 190, 209, 212, 220, 247, 260, 265, 286, 380, 418, 494, 530, 572, 583, 689, 715, 836, 988, 1007, 1045, 1060, 1166, 1235, 1378, 1430, 2014, 2090, 2332, 2470, 2717, 2756, 2860, 2915, 3445, 4028, 4180, 4940, 5035, 5434, 5830, 6890, 7579, 10070, 10868, 11077, 11660, 13091, 13585, 13780, 15158, 20140, 22154, 26182, 27170, 30316, 37895, 44308, 52364, 54340, 55385, 65455, 75790, 110770, 130910, 144001, 151580, 221540, 261820, 288002, 576004, 720005, 1440010, 2880020]

約数ペア:

[(1, 2880020), (2, 1440010), (4, 720005), (5, 576004), (10, 288002), (11, 261820), (13, 221540), (19, 151580), (20, 144001), (22, 130910), (26, 110770), (38, 75790), (44, 65455), (52, 55385), (53, 54340), (55, 52364), (65, 44308), (76, 37895), (95, 30316), (106, 27170), (110, 26182), (130, 22154), (143, 20140), (190, 15158), (209, 13780), (212, 13585), (220, 13091), (247, 11660), (260, 11077), (265, 10868), (286, 10070), (380, 7579), (418, 6890), (494, 5830), (530, 5434), (572, 5035), (583, 4940), (689, 4180), (715, 4028), (836, 3445), (988, 2915), (1007, 2860), (1045, 2756), (1060, 2717), (1166, 2470), (1235, 2332), (1378, 2090), (1430, 2014)]