719995640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{887}}^1$

素因数の和:1141

約数の個数: 128

約数和(自身を含む): 2005032960

約数和(自身を除く): 1285037320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 223, 260, 280, 364, 446, 455, 520, 728, 887, 892, 910, 1115, 1561, 1774, 1784, 1820, 2230, 2899, 3122, 3548, 3640, 4435, 4460, 5798, 6209, 6244, 7096, 7805, 8870, 8920, 11531, 11596, 12418, 12488, 14495, 15610, 17740, 20293, 23062, 23192, 24836, 28990, 31045, 31220, 35480, 40586, 46124, 49672, 57655, 57980, 62090, 62440, 80717, 81172, 92248, 101465, 115310, 115960, 124180, 161434, 162344, 197801, 202930, 230620, 248360, 322868, 395602, 403585, 405860, 461240, 645736, 791204, 807170, 811720, 989005, 1384607, 1582408, 1614340, 1978010, 2571413, 2769214, 3228680, 3956020, 5142826, 5538428, 6923035, 7912040, 10285652, 11076856, 12857065, 13846070, 17999891, 20571304, 25714130, 27692140, 35999782, 51428260, 55384280, 71999564, 89999455, 102856520, 143999128, 179998910, 359997820, 719995640]

約数ペア:

[(1, 719995640), (2, 359997820), (4, 179998910), (5, 143999128), (7, 102856520), (8, 89999455), (10, 71999564), (13, 55384280), (14, 51428260), (20, 35999782), (26, 27692140), (28, 25714130), (35, 20571304), (40, 17999891), (52, 13846070), (56, 12857065), (65, 11076856), (70, 10285652), (91, 7912040), (104, 6923035), (130, 5538428), (140, 5142826), (182, 3956020), (223, 3228680), (260, 2769214), (280, 2571413), (364, 1978010), (446, 1614340), (455, 1582408), (520, 1384607), (728, 989005), (887, 811720), (892, 807170), (910, 791204), (1115, 645736), (1561, 461240), (1774, 405860), (1784, 403585), (1820, 395602), (2230, 322868), (2899, 248360), (3122, 230620), (3548, 202930), (3640, 197801), (4435, 162344), (4460, 161434), (5798, 124180), (6209, 115960), (6244, 115310), (7096, 101465), (7805, 92248), (8870, 81172), (8920, 80717), (11531, 62440), (11596, 62090), (12418, 57980), (12488, 57655), (14495, 49672), (15610, 46124), (17740, 40586), (20293, 35480), (23062, 31220), (23192, 31045), (24836, 28990)]