31020340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{521}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 70595280

約数和(自身を除く): 39574940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 229, 260, 458, 521, 916, 1042, 1145, 2084, 2290, 2605, 2977, 4580, 5210, 5954, 6773, 10420, 11908, 13546, 14885, 27092, 29770, 33865, 59540, 67730, 119309, 135460, 238618, 477236, 596545, 1193090, 1551017, 2386180, 3102034, 6204068, 7755085, 15510170, 31020340]

約数ペア:

[(1, 31020340), (2, 15510170), (4, 7755085), (5, 6204068), (10, 3102034), (13, 2386180), (20, 1551017), (26, 1193090), (52, 596545), (65, 477236), (130, 238618), (229, 135460), (260, 119309), (458, 67730), (521, 59540), (916, 33865), (1042, 29770), (1145, 27092), (2084, 14885), (2290, 13546), (2605, 11908), (2977, 10420), (4580, 6773), (5210, 5954)]