1640390050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^3\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 3359941200

約数和(自身を除く): 1719551150

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 109, 130, 137, 169, 218, 274, 325, 338, 545, 650, 685, 845, 1090, 1370, 1417, 1690, 1781, 2197, 2725, 2834, 3425, 3562, 4225, 4394, 5450, 6850, 7085, 8450, 8905, 10985, 14170, 14933, 17810, 18421, 21970, 23153, 29866, 35425, 36842, 44525, 46306, 54925, 70850, 74665, 89050, 92105, 109850, 115765, 149330, 184210, 194129, 231530, 239473, 300989, 373325, 388258, 460525, 478946, 578825, 601978, 746650, 921050, 970645, 1157650, 1197365, 1504945, 1941290, 2394730, 2523677, 3009890, 4853225, 5047354, 5986825, 7524725, 9706450, 11973650, 12618385, 15049450, 25236770, 32807801, 63091925, 65615602, 126183850, 164039005, 328078010, 820195025, 1640390050]

約数ペア:

[(1, 1640390050), (2, 820195025), (5, 328078010), (10, 164039005), (13, 126183850), (25, 65615602), (26, 63091925), (50, 32807801), (65, 25236770), (109, 15049450), (130, 12618385), (137, 11973650), (169, 9706450), (218, 7524725), (274, 5986825), (325, 5047354), (338, 4853225), (545, 3009890), (650, 2523677), (685, 2394730), (845, 1941290), (1090, 1504945), (1370, 1197365), (1417, 1157650), (1690, 970645), (1781, 921050), (2197, 746650), (2725, 601978), (2834, 578825), (3425, 478946), (3562, 460525), (4225, 388258), (4394, 373325), (5450, 300989), (6850, 239473), (7085, 231530), (8450, 194129), (8905, 184210), (10985, 149330), (14170, 115765), (14933, 109850), (17810, 92105), (18421, 89050), (21970, 74665), (23153, 70850), (29866, 54925), (35425, 46306), (36842, 44525)]