400219300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9931}}^1$

素因数の和:9989

約数の個数: 72

約数和(自身を含む): 965549312

約数和(自身を除く): 565330012

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 3100, 4030, 8060, 9931, 10075, 19862, 20150, 39724, 40300, 49655, 99310, 129103, 198620, 248275, 258206, 307861, 496550, 516412, 615722, 645515, 993100, 1231444, 1291030, 1539305, 2582060, 3078610, 3227575, 4002193, 6157220, 6455150, 7696525, 8004386, 12910300, 15393050, 16008772, 20010965, 30786100, 40021930, 80043860, 100054825, 200109650, 400219300]

約数ペア:

[(1, 400219300), (2, 200109650), (4, 100054825), (5, 80043860), (10, 40021930), (13, 30786100), (20, 20010965), (25, 16008772), (26, 15393050), (31, 12910300), (50, 8004386), (52, 7696525), (62, 6455150), (65, 6157220), (100, 4002193), (124, 3227575), (130, 3078610), (155, 2582060), (260, 1539305), (310, 1291030), (325, 1231444), (403, 993100), (620, 645515), (650, 615722), (775, 516412), (806, 496550), (1300, 307861), (1550, 258206), (1612, 248275), (2015, 198620), (3100, 129103), (4030, 99310), (8060, 49655), (9931, 40300), (10075, 39724), (19862, 20150)]