42638440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{491}}^1$

素因数の和:682

約数の個数: 64

約数和(自身を含む): 104146560

約数和(自身を除く): 61508120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 167, 260, 334, 491, 520, 668, 835, 982, 1336, 1670, 1964, 2171, 2455, 3340, 3928, 4342, 4910, 6383, 6680, 8684, 9820, 10855, 12766, 17368, 19640, 21710, 25532, 31915, 43420, 51064, 63830, 81997, 86840, 127660, 163994, 255320, 327988, 409985, 655976, 819970, 1065961, 1639940, 2131922, 3279880, 4263844, 5329805, 8527688, 10659610, 21319220, 42638440]

約数ペア:

[(1, 42638440), (2, 21319220), (4, 10659610), (5, 8527688), (8, 5329805), (10, 4263844), (13, 3279880), (20, 2131922), (26, 1639940), (40, 1065961), (52, 819970), (65, 655976), (104, 409985), (130, 327988), (167, 255320), (260, 163994), (334, 127660), (491, 86840), (520, 81997), (668, 63830), (835, 51064), (982, 43420), (1336, 31915), (1670, 25532), (1964, 21710), (2171, 19640), (2455, 17368), (3340, 12766), (3928, 10855), (4342, 9820), (4910, 8684), (6383, 6680)]