79420140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:420

約数の個数: 144

約数和(自身を含む): 255230976

約数和(自身を除く): 175810836

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 43, 45, 60, 62, 86, 90, 93, 124, 129, 155, 172, 180, 186, 215, 258, 279, 310, 331, 372, 387, 430, 465, 516, 558, 620, 645, 662, 774, 860, 930, 993, 1116, 1290, 1324, 1333, 1395, 1548, 1655, 1860, 1935, 1986, 2580, 2666, 2790, 2979, 3310, 3870, 3972, 3999, 4965, 5332, 5580, 5958, 6620, 6665, 7740, 7998, 9930, 10261, 11916, 11997, 13330, 14233, 14895, 15996, 19860, 19995, 20522, 23994, 26660, 28466, 29790, 30783, 39990, 41044, 42699, 47988, 51305, 56932, 59580, 59985, 61566, 71165, 79980, 85398, 92349, 102610, 119970, 123132, 128097, 142330, 153915, 170796, 184698, 205220, 213495, 239940, 256194, 284660, 307830, 369396, 426990, 441223, 461745, 512388, 615660, 640485, 853980, 882446, 923490, 1280970, 1323669, 1764892, 1846980, 2206115, 2561940, 2647338, 3971007, 4412230, 5294676, 6618345, 7942014, 8824460, 13236690, 15884028, 19855035, 26473380, 39710070, 79420140]

約数ペア:

[(1, 79420140), (2, 39710070), (3, 26473380), (4, 19855035), (5, 15884028), (6, 13236690), (9, 8824460), (10, 7942014), (12, 6618345), (15, 5294676), (18, 4412230), (20, 3971007), (30, 2647338), (31, 2561940), (36, 2206115), (43, 1846980), (45, 1764892), (60, 1323669), (62, 1280970), (86, 923490), (90, 882446), (93, 853980), (124, 640485), (129, 615660), (155, 512388), (172, 461745), (180, 441223), (186, 426990), (215, 369396), (258, 307830), (279, 284660), (310, 256194), (331, 239940), (372, 213495), (387, 205220), (430, 184698), (465, 170796), (516, 153915), (558, 142330), (620, 128097), (645, 123132), (662, 119970), (774, 102610), (860, 92349), (930, 85398), (993, 79980), (1116, 71165), (1290, 61566), (1324, 59985), (1333, 59580), (1395, 56932), (1548, 51305), (1655, 47988), (1860, 42699), (1935, 41044), (1986, 39990), (2580, 30783), (2666, 29790), (2790, 28466), (2979, 26660), (3310, 23994), (3870, 20522), (3972, 19995), (3999, 19860), (4965, 15996), (5332, 14895), (5580, 14233), (5958, 13330), (6620, 11997), (6665, 11916), (7740, 10261), (7998, 9930)]