291386760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4391}}^1$

素因数の和:4491

約数の個数: 128

約数和(自身を含む): 1011916800

約数和(自身を除く): 720530040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 79, 84, 105, 120, 140, 158, 168, 210, 237, 280, 316, 395, 420, 474, 553, 632, 790, 840, 948, 1106, 1185, 1580, 1659, 1896, 2212, 2370, 2765, 3160, 3318, 4391, 4424, 4740, 5530, 6636, 8295, 8782, 9480, 11060, 13173, 13272, 16590, 17564, 21955, 22120, 26346, 30737, 33180, 35128, 43910, 52692, 61474, 65865, 66360, 87820, 92211, 105384, 122948, 131730, 153685, 175640, 184422, 245896, 263460, 307370, 346889, 368844, 461055, 526920, 614740, 693778, 737688, 922110, 1040667, 1229480, 1387556, 1734445, 1844220, 2081334, 2428223, 2775112, 3468890, 3688440, 4162668, 4856446, 5203335, 6937780, 7284669, 8325336, 9712892, 10406670, 12141115, 13875560, 14569338, 19425784, 20813340, 24282230, 29138676, 36423345, 41626680, 48564460, 58277352, 72846690, 97128920, 145693380, 291386760]

約数ペア:

[(1, 291386760), (2, 145693380), (3, 97128920), (4, 72846690), (5, 58277352), (6, 48564460), (7, 41626680), (8, 36423345), (10, 29138676), (12, 24282230), (14, 20813340), (15, 19425784), (20, 14569338), (21, 13875560), (24, 12141115), (28, 10406670), (30, 9712892), (35, 8325336), (40, 7284669), (42, 6937780), (56, 5203335), (60, 4856446), (70, 4162668), (79, 3688440), (84, 3468890), (105, 2775112), (120, 2428223), (140, 2081334), (158, 1844220), (168, 1734445), (210, 1387556), (237, 1229480), (280, 1040667), (316, 922110), (395, 737688), (420, 693778), (474, 614740), (553, 526920), (632, 461055), (790, 368844), (840, 346889), (948, 307370), (1106, 263460), (1185, 245896), (1580, 184422), (1659, 175640), (1896, 153685), (2212, 131730), (2370, 122948), (2765, 105384), (3160, 92211), (3318, 87820), (4391, 66360), (4424, 65865), (4740, 61474), (5530, 52692), (6636, 43910), (8295, 35128), (8782, 33180), (9480, 30737), (11060, 26346), (13173, 22120), (13272, 21955), (16590, 17564)]