397922980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1669}}^1$

素因数の和:1829

約数の個数: 96

約数和(自身を含む): 1036949760

約数和(自身を除く): 639026780

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 131, 140, 182, 260, 262, 364, 455, 524, 655, 910, 917, 1310, 1669, 1703, 1820, 1834, 2620, 3338, 3406, 3668, 4585, 6676, 6812, 8345, 8515, 9170, 11683, 11921, 16690, 17030, 18340, 21697, 23366, 23842, 33380, 34060, 43394, 46732, 47684, 58415, 59605, 86788, 108485, 116830, 119210, 151879, 216970, 218639, 233660, 238420, 303758, 433940, 437278, 607516, 759395, 874556, 1093195, 1518790, 1530473, 2186390, 2842307, 3037580, 3060946, 4372780, 5684614, 6121892, 7652365, 11369228, 14211535, 15304730, 19896149, 28423070, 30609460, 39792298, 56846140, 79584596, 99480745, 198961490, 397922980]

約数ペア:

[(1, 397922980), (2, 198961490), (4, 99480745), (5, 79584596), (7, 56846140), (10, 39792298), (13, 30609460), (14, 28423070), (20, 19896149), (26, 15304730), (28, 14211535), (35, 11369228), (52, 7652365), (65, 6121892), (70, 5684614), (91, 4372780), (130, 3060946), (131, 3037580), (140, 2842307), (182, 2186390), (260, 1530473), (262, 1518790), (364, 1093195), (455, 874556), (524, 759395), (655, 607516), (910, 437278), (917, 433940), (1310, 303758), (1669, 238420), (1703, 233660), (1820, 218639), (1834, 216970), (2620, 151879), (3338, 119210), (3406, 116830), (3668, 108485), (4585, 86788), (6676, 59605), (6812, 58415), (8345, 47684), (8515, 46732), (9170, 43394), (11683, 34060), (11921, 33380), (16690, 23842), (17030, 23366), (18340, 21697)]