28909140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2851}}^1$

素因数の和:2889

約数の個数: 72

約数和(自身を含む): 87681888

約数和(自身を除く): 58772748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 2851, 3380, 5070, 5702, 8553, 10140, 11404, 14255, 17106, 28510, 34212, 37063, 42765, 57020, 74126, 85530, 111189, 148252, 171060, 185315, 222378, 370630, 444756, 481819, 555945, 741260, 963638, 1111890, 1445457, 1927276, 2223780, 2409095, 2890914, 4818190, 5781828, 7227285, 9636380, 14454570, 28909140]

約数ペア:

[(1, 28909140), (2, 14454570), (3, 9636380), (4, 7227285), (5, 5781828), (6, 4818190), (10, 2890914), (12, 2409095), (13, 2223780), (15, 1927276), (20, 1445457), (26, 1111890), (30, 963638), (39, 741260), (52, 555945), (60, 481819), (65, 444756), (78, 370630), (130, 222378), (156, 185315), (169, 171060), (195, 148252), (260, 111189), (338, 85530), (390, 74126), (507, 57020), (676, 42765), (780, 37063), (845, 34212), (1014, 28510), (1690, 17106), (2028, 14255), (2535, 11404), (2851, 10140), (3380, 8553), (5070, 5702)]