81283980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{25561}}^1$

素因数の和:25626

約数の個数: 48

約数和(自身を含む): 231898464

約数和(自身を除く): 150614484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 25561, 51122, 76683, 102244, 127805, 153366, 255610, 306732, 383415, 511220, 766830, 1354733, 1533660, 2709466, 4064199, 5418932, 6773665, 8128398, 13547330, 16256796, 20320995, 27094660, 40641990, 81283980]

約数ペア:

[(1, 81283980), (2, 40641990), (3, 27094660), (4, 20320995), (5, 16256796), (6, 13547330), (10, 8128398), (12, 6773665), (15, 5418932), (20, 4064199), (30, 2709466), (53, 1533660), (60, 1354733), (106, 766830), (159, 511220), (212, 383415), (265, 306732), (318, 255610), (530, 153366), (636, 127805), (795, 102244), (1060, 76683), (1590, 51122), (3180, 25561)]