209538420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{38377}}^1$

素因数の和:38409

約数の個数: 96

約数和(自身を含む): 722120448

約数和(自身を除く): 512582028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 38377, 76754, 115131, 153508, 191885, 230262, 268639, 383770, 460524, 498901, 537278, 575655, 767540, 805917, 997802, 1074556, 1151310, 1343195, 1496703, 1611834, 1995604, 2302620, 2494505, 2686390, 2993406, 3223668, 3492307, 4029585, 4989010, 5372780, 5986812, 6984614, 7483515, 8059170, 9978020, 10476921, 13969228, 14967030, 16118340, 17461535, 20953842, 29934060, 34923070, 41907684, 52384605, 69846140, 104769210, 209538420]

約数ペア:

[(1, 209538420), (2, 104769210), (3, 69846140), (4, 52384605), (5, 41907684), (6, 34923070), (7, 29934060), (10, 20953842), (12, 17461535), (13, 16118340), (14, 14967030), (15, 13969228), (20, 10476921), (21, 9978020), (26, 8059170), (28, 7483515), (30, 6984614), (35, 5986812), (39, 5372780), (42, 4989010), (52, 4029585), (60, 3492307), (65, 3223668), (70, 2993406), (78, 2686390), (84, 2494505), (91, 2302620), (105, 1995604), (130, 1611834), (140, 1496703), (156, 1343195), (182, 1151310), (195, 1074556), (210, 997802), (260, 805917), (273, 767540), (364, 575655), (390, 537278), (420, 498901), (455, 460524), (546, 383770), (780, 268639), (910, 230262), (1092, 191885), (1365, 153508), (1820, 115131), (2730, 76754), (5460, 38377)]