2040346840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{751}}^1$

素因数の和:1113

約数の個数: 128

約数和(自身を含む): 5440389120

約数和(自身を除く): 3400042280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 313, 434, 620, 626, 751, 868, 1085, 1240, 1252, 1502, 1565, 1736, 2170, 2191, 2504, 3004, 3130, 3755, 4340, 4382, 5257, 6008, 6260, 7510, 8680, 8764, 9703, 10514, 10955, 12520, 15020, 17528, 19406, 21028, 21910, 23281, 26285, 30040, 38812, 42056, 43820, 46562, 48515, 52570, 67921, 77624, 87640, 93124, 97030, 105140, 116405, 135842, 162967, 186248, 194060, 210280, 232810, 235063, 271684, 325934, 339605, 388120, 465620, 470126, 543368, 651868, 679210, 814835, 931240, 940252, 1175315, 1303736, 1358420, 1629670, 1645441, 1880504, 2350630, 2716840, 3259340, 3290882, 4701260, 6518680, 6581764, 7286953, 8227205, 9402520, 13163528, 14573906, 16454410, 29147812, 32908820, 36434765, 51008671, 58295624, 65817640, 72869530, 102017342, 145739060, 204034684, 255043355, 291478120, 408069368, 510086710, 1020173420, 2040346840]

約数ペア:

[(1, 2040346840), (2, 1020173420), (4, 510086710), (5, 408069368), (7, 291478120), (8, 255043355), (10, 204034684), (14, 145739060), (20, 102017342), (28, 72869530), (31, 65817640), (35, 58295624), (40, 51008671), (56, 36434765), (62, 32908820), (70, 29147812), (124, 16454410), (140, 14573906), (155, 13163528), (217, 9402520), (248, 8227205), (280, 7286953), (310, 6581764), (313, 6518680), (434, 4701260), (620, 3290882), (626, 3259340), (751, 2716840), (868, 2350630), (1085, 1880504), (1240, 1645441), (1252, 1629670), (1502, 1358420), (1565, 1303736), (1736, 1175315), (2170, 940252), (2191, 931240), (2504, 814835), (3004, 679210), (3130, 651868), (3755, 543368), (4340, 470126), (4382, 465620), (5257, 388120), (6008, 339605), (6260, 325934), (7510, 271684), (8680, 235063), (8764, 232810), (9703, 210280), (10514, 194060), (10955, 186248), (12520, 162967), (15020, 135842), (17528, 116405), (19406, 105140), (21028, 97030), (21910, 93124), (23281, 87640), (26285, 77624), (30040, 67921), (38812, 52570), (42056, 48515), (43820, 46562)]