72505280

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7309}}^1$

素因数の和:7357

約数の個数: 56

約数和(自身を含む): 178247040

約数和(自身を除く): 105741760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 7309, 9920, 14618, 29236, 36545, 58472, 73090, 116944, 146180, 226579, 233888, 292360, 453158, 467776, 584720, 906316, 1132895, 1169440, 1812632, 2265790, 2338880, 3625264, 4531580, 7250528, 9063160, 14501056, 18126320, 36252640, 72505280]

約数ペア:

[(1, 72505280), (2, 36252640), (4, 18126320), (5, 14501056), (8, 9063160), (10, 7250528), (16, 4531580), (20, 3625264), (31, 2338880), (32, 2265790), (40, 1812632), (62, 1169440), (64, 1132895), (80, 906316), (124, 584720), (155, 467776), (160, 453158), (248, 292360), (310, 233888), (320, 226579), (496, 146180), (620, 116944), (992, 73090), (1240, 58472), (1984, 36545), (2480, 29236), (4960, 14618), (7309, 9920)]