1555320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{997}}^1$

素因数の和:1024

約数の個数: 64

約数和(自身を含む): 5029920

約数和(自身を除く): 3474600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 997, 1560, 1994, 2991, 3988, 4985, 5982, 7976, 9970, 11964, 12961, 14955, 19940, 23928, 25922, 29910, 38883, 39880, 51844, 59820, 64805, 77766, 103688, 119640, 129610, 155532, 194415, 259220, 311064, 388830, 518440, 777660, 1555320]

約数ペア:

[(1, 1555320), (2, 777660), (3, 518440), (4, 388830), (5, 311064), (6, 259220), (8, 194415), (10, 155532), (12, 129610), (13, 119640), (15, 103688), (20, 77766), (24, 64805), (26, 59820), (30, 51844), (39, 39880), (40, 38883), (52, 29910), (60, 25922), (65, 23928), (78, 19940), (104, 14955), (120, 12961), (130, 11964), (156, 9970), (195, 7976), (260, 5982), (312, 4985), (390, 3988), (520, 2991), (780, 1994), (997, 1560)]