81828840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21997}}^1$

素因数の和:22042

約数の個数: 64

約数和(自身を含む): 253416960

約数和(自身を除く): 171588120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 21997, 43994, 65991, 87988, 109985, 131982, 175976, 219970, 263964, 329955, 439940, 527928, 659910, 681907, 879880, 1319820, 1363814, 2045721, 2639640, 2727628, 3409535, 4091442, 5455256, 6819070, 8182884, 10228605, 13638140, 16365768, 20457210, 27276280, 40914420, 81828840]

約数ペア:

[(1, 81828840), (2, 40914420), (3, 27276280), (4, 20457210), (5, 16365768), (6, 13638140), (8, 10228605), (10, 8182884), (12, 6819070), (15, 5455256), (20, 4091442), (24, 3409535), (30, 2727628), (31, 2639640), (40, 2045721), (60, 1363814), (62, 1319820), (93, 879880), (120, 681907), (124, 659910), (155, 527928), (186, 439940), (248, 329955), (310, 263964), (372, 219970), (465, 175976), (620, 131982), (744, 109985), (930, 87988), (1240, 65991), (1860, 43994), (3720, 21997)]