20074980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 59609088

約数和(自身を除く): 39534108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 43, 60, 62, 86, 93, 124, 129, 155, 172, 186, 215, 251, 258, 310, 372, 430, 465, 502, 516, 620, 645, 753, 860, 930, 1004, 1255, 1290, 1333, 1506, 1860, 2510, 2580, 2666, 3012, 3765, 3999, 5020, 5332, 6665, 7530, 7781, 7998, 10793, 13330, 15060, 15562, 15996, 19995, 21586, 23343, 26660, 31124, 32379, 38905, 39990, 43172, 46686, 53965, 64758, 77810, 79980, 93372, 107930, 116715, 129516, 155620, 161895, 215860, 233430, 323790, 334583, 466860, 647580, 669166, 1003749, 1338332, 1672915, 2007498, 3345830, 4014996, 5018745, 6691660, 10037490, 20074980]

約数ペア:

[(1, 20074980), (2, 10037490), (3, 6691660), (4, 5018745), (5, 4014996), (6, 3345830), (10, 2007498), (12, 1672915), (15, 1338332), (20, 1003749), (30, 669166), (31, 647580), (43, 466860), (60, 334583), (62, 323790), (86, 233430), (93, 215860), (124, 161895), (129, 155620), (155, 129516), (172, 116715), (186, 107930), (215, 93372), (251, 79980), (258, 77810), (310, 64758), (372, 53965), (430, 46686), (465, 43172), (502, 39990), (516, 38905), (620, 32379), (645, 31124), (753, 26660), (860, 23343), (930, 21586), (1004, 19995), (1255, 15996), (1290, 15562), (1333, 15060), (1506, 13330), (1860, 10793), (2510, 7998), (2580, 7781), (2666, 7530), (3012, 6665), (3765, 5332), (3999, 5020)]