28293525

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{569}}^1$

素因数の和:615

約数の個数: 72

約数和(自身を含む): 57886920

約数和(自身を除く): 29593395

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 85, 117, 153, 195, 221, 225, 255, 325, 425, 569, 585, 663, 765, 975, 1105, 1275, 1707, 1989, 2845, 2925, 3315, 3825, 5121, 5525, 7397, 8535, 9673, 9945, 14225, 16575, 22191, 25605, 29019, 36985, 42675, 48365, 49725, 66573, 87057, 110955, 125749, 128025, 145095, 184925, 241825, 332865, 377247, 435285, 554775, 628745, 725475, 1131741, 1664325, 1886235, 2176425, 3143725, 5658705, 9431175, 28293525]

約数ペア:

[(1, 28293525), (3, 9431175), (5, 5658705), (9, 3143725), (13, 2176425), (15, 1886235), (17, 1664325), (25, 1131741), (39, 725475), (45, 628745), (51, 554775), (65, 435285), (75, 377247), (85, 332865), (117, 241825), (153, 184925), (195, 145095), (221, 128025), (225, 125749), (255, 110955), (325, 87057), (425, 66573), (569, 49725), (585, 48365), (663, 42675), (765, 36985), (975, 29019), (1105, 25605), (1275, 22191), (1707, 16575), (1989, 14225), (2845, 9945), (2925, 9673), (3315, 8535), (3825, 7397), (5121, 5525)]