197421640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:423

約数の個数: 128

約数和(自身を含む): 508677120

約数和(自身を除く): 311255480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 37, 40, 52, 62, 65, 74, 104, 124, 130, 148, 155, 185, 248, 260, 296, 310, 331, 370, 403, 481, 520, 620, 662, 740, 806, 962, 1147, 1240, 1324, 1480, 1612, 1655, 1924, 2015, 2294, 2405, 2648, 3224, 3310, 3848, 4030, 4303, 4588, 4810, 5735, 6620, 8060, 8606, 9176, 9620, 10261, 11470, 12247, 13240, 14911, 16120, 17212, 19240, 20522, 21515, 22940, 24494, 29822, 34424, 41044, 43030, 45880, 48988, 51305, 59644, 61235, 74555, 82088, 86060, 97976, 102610, 119288, 122470, 133393, 149110, 159211, 172120, 205220, 244940, 266786, 298220, 318422, 379657, 410440, 489880, 533572, 596440, 636844, 666965, 759314, 796055, 1067144, 1273688, 1333930, 1518628, 1592110, 1898285, 2667860, 3037256, 3184220, 3796570, 4935541, 5335720, 6368440, 7593140, 9871082, 15186280, 19742164, 24677705, 39484328, 49355410, 98710820, 197421640]

約数ペア:

[(1, 197421640), (2, 98710820), (4, 49355410), (5, 39484328), (8, 24677705), (10, 19742164), (13, 15186280), (20, 9871082), (26, 7593140), (31, 6368440), (37, 5335720), (40, 4935541), (52, 3796570), (62, 3184220), (65, 3037256), (74, 2667860), (104, 1898285), (124, 1592110), (130, 1518628), (148, 1333930), (155, 1273688), (185, 1067144), (248, 796055), (260, 759314), (296, 666965), (310, 636844), (331, 596440), (370, 533572), (403, 489880), (481, 410440), (520, 379657), (620, 318422), (662, 298220), (740, 266786), (806, 244940), (962, 205220), (1147, 172120), (1240, 159211), (1324, 149110), (1480, 133393), (1612, 122470), (1655, 119288), (1924, 102610), (2015, 97976), (2294, 86060), (2405, 82088), (2648, 74555), (3224, 61235), (3310, 59644), (3848, 51305), (4030, 48988), (4303, 45880), (4588, 43030), (4810, 41044), (5735, 34424), (6620, 29822), (8060, 24494), (8606, 22940), (9176, 21515), (9620, 20522), (10261, 19240), (11470, 17212), (12247, 16120), (13240, 14911)]