1780870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 4193280

約数和(自身を除く): 2412410

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 65, 70, 91, 95, 103, 130, 133, 182, 190, 206, 247, 266, 455, 494, 515, 665, 721, 910, 1030, 1235, 1330, 1339, 1442, 1729, 1957, 2470, 2678, 3458, 3605, 3914, 6695, 7210, 8645, 9373, 9785, 13390, 13699, 17290, 18746, 19570, 25441, 27398, 46865, 50882, 68495, 93730, 127205, 136990, 178087, 254410, 356174, 890435, 1780870]

約数ペア:

[(1, 1780870), (2, 890435), (5, 356174), (7, 254410), (10, 178087), (13, 136990), (14, 127205), (19, 93730), (26, 68495), (35, 50882), (38, 46865), (65, 27398), (70, 25441), (91, 19570), (95, 18746), (103, 17290), (130, 13699), (133, 13390), (182, 9785), (190, 9373), (206, 8645), (247, 7210), (266, 6695), (455, 3914), (494, 3605), (515, 3458), (665, 2678), (721, 2470), (910, 1957), (1030, 1729), (1235, 1442), (1330, 1339)]