28103940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3631}}^1$

素因数の和:3689

約数の個数: 72

約数和(自身を含む): 87255168

約数和(自身を除く): 59151228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3631, 3870, 7262, 7740, 10893, 14524, 18155, 21786, 32679, 36310, 43572, 54465, 65358, 72620, 108930, 130716, 156133, 163395, 217860, 312266, 326790, 468399, 624532, 653580, 780665, 936798, 1405197, 1561330, 1873596, 2341995, 2810394, 3122660, 4683990, 5620788, 7025985, 9367980, 14051970, 28103940]

約数ペア:

[(1, 28103940), (2, 14051970), (3, 9367980), (4, 7025985), (5, 5620788), (6, 4683990), (9, 3122660), (10, 2810394), (12, 2341995), (15, 1873596), (18, 1561330), (20, 1405197), (30, 936798), (36, 780665), (43, 653580), (45, 624532), (60, 468399), (86, 326790), (90, 312266), (129, 217860), (172, 163395), (180, 156133), (215, 130716), (258, 108930), (387, 72620), (430, 65358), (516, 54465), (645, 43572), (774, 36310), (860, 32679), (1290, 21786), (1548, 18155), (1935, 14524), (2580, 10893), (3631, 7740), (3870, 7262)]