28485780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 83411328

約数和(自身を除く): 54925548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 61, 86, 122, 129, 172, 181, 183, 215, 244, 258, 305, 362, 366, 430, 516, 543, 610, 645, 724, 732, 860, 905, 915, 1086, 1220, 1290, 1810, 1830, 2172, 2580, 2623, 2715, 3620, 3660, 5246, 5430, 7783, 7869, 10492, 10860, 11041, 13115, 15566, 15738, 22082, 23349, 26230, 31132, 31476, 33123, 38915, 39345, 44164, 46698, 52460, 55205, 66246, 77830, 78690, 93396, 110410, 116745, 132492, 155660, 157380, 165615, 220820, 233490, 331230, 466980, 474763, 662460, 949526, 1424289, 1899052, 2373815, 2848578, 4747630, 5697156, 7121445, 9495260, 14242890, 28485780]

約数ペア:

[(1, 28485780), (2, 14242890), (3, 9495260), (4, 7121445), (5, 5697156), (6, 4747630), (10, 2848578), (12, 2373815), (15, 1899052), (20, 1424289), (30, 949526), (43, 662460), (60, 474763), (61, 466980), (86, 331230), (122, 233490), (129, 220820), (172, 165615), (181, 157380), (183, 155660), (215, 132492), (244, 116745), (258, 110410), (305, 93396), (362, 78690), (366, 77830), (430, 66246), (516, 55205), (543, 52460), (610, 46698), (645, 44164), (724, 39345), (732, 38915), (860, 33123), (905, 31476), (915, 31132), (1086, 26230), (1220, 23349), (1290, 22082), (1810, 15738), (1830, 15566), (2172, 13115), (2580, 11041), (2623, 10860), (2715, 10492), (3620, 7869), (3660, 7783), (5246, 5430)]