1643465380

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{199}}^1\times {\mathrm{491}}^1$

素因数の和:757

約数の個数: 72

約数和(自身を含む): 3599668800

約数和(自身を除く): 1956203420

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 199, 290, 398, 491, 580, 796, 841, 982, 995, 1682, 1964, 1990, 2455, 3364, 3980, 4205, 4910, 5771, 8410, 9820, 11542, 14239, 16820, 23084, 28478, 28855, 56956, 57710, 71195, 97709, 115420, 142390, 167359, 195418, 284780, 334718, 390836, 412931, 488545, 669436, 825862, 836795, 977090, 1651724, 1673590, 1954180, 2064655, 2833561, 3347180, 4129310, 5667122, 8258620, 11334244, 14167805, 28335610, 56671220, 82173269, 164346538, 328693076, 410866345, 821732690, 1643465380]

約数ペア:

[(1, 1643465380), (2, 821732690), (4, 410866345), (5, 328693076), (10, 164346538), (20, 82173269), (29, 56671220), (58, 28335610), (116, 14167805), (145, 11334244), (199, 8258620), (290, 5667122), (398, 4129310), (491, 3347180), (580, 2833561), (796, 2064655), (841, 1954180), (982, 1673590), (995, 1651724), (1682, 977090), (1964, 836795), (1990, 825862), (2455, 669436), (3364, 488545), (3980, 412931), (4205, 390836), (4910, 334718), (5771, 284780), (8410, 195418), (9820, 167359), (11542, 142390), (14239, 115420), (16820, 97709), (23084, 71195), (28478, 57710), (28855, 56956)]