390890900

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:761

約数の個数: 72

約数和(自身を含む): 872381664

約数和(自身を除く): 481490764

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 131, 212, 262, 265, 524, 530, 563, 655, 1060, 1126, 1310, 1325, 2252, 2620, 2650, 2815, 3275, 5300, 5630, 6550, 6943, 11260, 13100, 13886, 14075, 27772, 28150, 29839, 34715, 56300, 59678, 69430, 73753, 119356, 138860, 147506, 149195, 173575, 295012, 298390, 347150, 368765, 596780, 694300, 737530, 745975, 1475060, 1491950, 1843825, 2983900, 3687650, 3908909, 7375300, 7817818, 15635636, 19544545, 39089090, 78178180, 97722725, 195445450, 390890900]

約数ペア:

[(1, 390890900), (2, 195445450), (4, 97722725), (5, 78178180), (10, 39089090), (20, 19544545), (25, 15635636), (50, 7817818), (53, 7375300), (100, 3908909), (106, 3687650), (131, 2983900), (212, 1843825), (262, 1491950), (265, 1475060), (524, 745975), (530, 737530), (563, 694300), (655, 596780), (1060, 368765), (1126, 347150), (1310, 298390), (1325, 295012), (2252, 173575), (2620, 149195), (2650, 147506), (2815, 138860), (3275, 119356), (5300, 73753), (5630, 69430), (6550, 59678), (6943, 56300), (11260, 34715), (13100, 29839), (13886, 28150), (14075, 27772)]