20108728120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{52901}}^1$

素因数の和:52985

約数の個数: 128

約数和(自身を含む): 52791963840

約数和(自身を除く): 32683235720

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 43, 52, 65, 68, 85, 86, 104, 130, 136, 170, 172, 215, 221, 260, 340, 344, 430, 442, 520, 559, 680, 731, 860, 884, 1105, 1118, 1462, 1720, 1768, 2210, 2236, 2795, 2924, 3655, 4420, 4472, 5590, 5848, 7310, 8840, 9503, 11180, 14620, 19006, 22360, 29240, 38012, 47515, 52901, 76024, 95030, 105802, 190060, 211604, 264505, 380120, 423208, 529010, 687713, 899317, 1058020, 1375426, 1798634, 2116040, 2274743, 2750852, 3438565, 3597268, 4496585, 4549486, 5501704, 6877130, 7194536, 8993170, 9098972, 11373715, 11691121, 13754260, 17986340, 18197944, 22747430, 23382242, 27508520, 29571659, 35972680, 38670631, 45494860, 46764484, 58455605, 59143318, 77341262, 90989720, 93528968, 116911210, 118286636, 147858295, 154682524, 193353155, 233822420, 236573272, 295716590, 309365048, 386706310, 467644840, 502718203, 591433180, 773412620, 1005436406, 1182866360, 1546825240, 2010872812, 2513591015, 4021745624, 5027182030, 10054364060, 20108728120]

約数ペア:

[(1, 20108728120), (2, 10054364060), (4, 5027182030), (5, 4021745624), (8, 2513591015), (10, 2010872812), (13, 1546825240), (17, 1182866360), (20, 1005436406), (26, 773412620), (34, 591433180), (40, 502718203), (43, 467644840), (52, 386706310), (65, 309365048), (68, 295716590), (85, 236573272), (86, 233822420), (104, 193353155), (130, 154682524), (136, 147858295), (170, 118286636), (172, 116911210), (215, 93528968), (221, 90989720), (260, 77341262), (340, 59143318), (344, 58455605), (430, 46764484), (442, 45494860), (520, 38670631), (559, 35972680), (680, 29571659), (731, 27508520), (860, 23382242), (884, 22747430), (1105, 18197944), (1118, 17986340), (1462, 13754260), (1720, 11691121), (1768, 11373715), (2210, 9098972), (2236, 8993170), (2795, 7194536), (2924, 6877130), (3655, 5501704), (4420, 4549486), (4472, 4496585), (5590, 3597268), (5848, 3438565), (7310, 2750852), (8840, 2274743), (9503, 2116040), (11180, 1798634), (14620, 1375426), (19006, 1058020), (22360, 899317), (29240, 687713), (38012, 529010), (47515, 423208), (52901, 380120), (76024, 264505), (95030, 211604), (105802, 190060)]