28075860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2557}}^1$

素因数の和:2633

約数の個数: 72

約数和(自身を含む): 86593416

約数和(自身を除く): 58517556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2557, 2745, 3660, 5114, 5490, 7671, 10228, 10980, 12785, 15342, 23013, 25570, 30684, 38355, 46026, 51140, 76710, 92052, 115065, 153420, 155977, 230130, 311954, 460260, 467931, 623908, 779885, 935862, 1403793, 1559770, 1871724, 2339655, 2807586, 3119540, 4679310, 5615172, 7018965, 9358620, 14037930, 28075860]

約数ペア:

[(1, 28075860), (2, 14037930), (3, 9358620), (4, 7018965), (5, 5615172), (6, 4679310), (9, 3119540), (10, 2807586), (12, 2339655), (15, 1871724), (18, 1559770), (20, 1403793), (30, 935862), (36, 779885), (45, 623908), (60, 467931), (61, 460260), (90, 311954), (122, 230130), (180, 155977), (183, 153420), (244, 115065), (305, 92052), (366, 76710), (549, 51140), (610, 46026), (732, 38355), (915, 30684), (1098, 25570), (1220, 23013), (1830, 15342), (2196, 12785), (2557, 10980), (2745, 10228), (3660, 7671), (5114, 5490)]