28325320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 67184640

約数和(自身を除く): 38859320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 310, 424, 431, 530, 620, 862, 1060, 1240, 1643, 1724, 2120, 2155, 3286, 3448, 4310, 6572, 8215, 8620, 13144, 13361, 16430, 17240, 22843, 26722, 32860, 45686, 53444, 65720, 66805, 91372, 106888, 114215, 133610, 182744, 228430, 267220, 456860, 534440, 708133, 913720, 1416266, 2832532, 3540665, 5665064, 7081330, 14162660, 28325320]

約数ペア:

[(1, 28325320), (2, 14162660), (4, 7081330), (5, 5665064), (8, 3540665), (10, 2832532), (20, 1416266), (31, 913720), (40, 708133), (53, 534440), (62, 456860), (106, 267220), (124, 228430), (155, 182744), (212, 133610), (248, 114215), (265, 106888), (310, 91372), (424, 66805), (431, 65720), (530, 53444), (620, 45686), (862, 32860), (1060, 26722), (1240, 22843), (1643, 17240), (1724, 16430), (2120, 13361), (2155, 13144), (3286, 8620), (3448, 8215), (4310, 6572)]