291892020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{983}}^1$

素因数の和:1110

約数の個数: 144

約数和(自身を含む): 961123968

約数和(自身を除く): 669231948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 101, 105, 140, 147, 196, 202, 210, 245, 294, 303, 404, 420, 490, 505, 588, 606, 707, 735, 980, 983, 1010, 1212, 1414, 1470, 1515, 1966, 2020, 2121, 2828, 2940, 2949, 3030, 3535, 3932, 4242, 4915, 4949, 5898, 6060, 6881, 7070, 8484, 9830, 9898, 10605, 11796, 13762, 14140, 14745, 14847, 19660, 19796, 20643, 21210, 24745, 27524, 29490, 29694, 34405, 41286, 42420, 48167, 49490, 58980, 59388, 68810, 74235, 82572, 96334, 98980, 99283, 103215, 137620, 144501, 148470, 192668, 198566, 206430, 240835, 289002, 296940, 297849, 397132, 412860, 481670, 496415, 578004, 595698, 694981, 722505, 963340, 992830, 1191396, 1389962, 1445010, 1489245, 1985660, 2084943, 2779924, 2890020, 2978490, 3474905, 4169886, 4864867, 5956980, 6949810, 8339772, 9729734, 10424715, 13899620, 14594601, 19459468, 20849430, 24324335, 29189202, 41698860, 48648670, 58378404, 72973005, 97297340, 145946010, 291892020]

約数ペア:

[(1, 291892020), (2, 145946010), (3, 97297340), (4, 72973005), (5, 58378404), (6, 48648670), (7, 41698860), (10, 29189202), (12, 24324335), (14, 20849430), (15, 19459468), (20, 14594601), (21, 13899620), (28, 10424715), (30, 9729734), (35, 8339772), (42, 6949810), (49, 5956980), (60, 4864867), (70, 4169886), (84, 3474905), (98, 2978490), (101, 2890020), (105, 2779924), (140, 2084943), (147, 1985660), (196, 1489245), (202, 1445010), (210, 1389962), (245, 1191396), (294, 992830), (303, 963340), (404, 722505), (420, 694981), (490, 595698), (505, 578004), (588, 496415), (606, 481670), (707, 412860), (735, 397132), (980, 297849), (983, 296940), (1010, 289002), (1212, 240835), (1414, 206430), (1470, 198566), (1515, 192668), (1966, 148470), (2020, 144501), (2121, 137620), (2828, 103215), (2940, 99283), (2949, 98980), (3030, 96334), (3535, 82572), (3932, 74235), (4242, 68810), (4915, 59388), (4949, 58980), (5898, 49490), (6060, 48167), (6881, 42420), (7070, 41286), (8484, 34405), (9830, 29694), (9898, 29490), (10605, 27524), (11796, 24745), (13762, 21210), (14140, 20643), (14745, 19796), (14847, 19660)]