28029225

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:319

約数の個数: 72

約数和(自身を含む): 55978560

約数和(自身を除く): 27949335

約数列:

[1, 3, 5, 7, 15, 21, 25, 29, 35, 49, 75, 87, 105, 145, 147, 175, 203, 245, 263, 435, 525, 609, 725, 735, 789, 1015, 1225, 1315, 1421, 1841, 2175, 3045, 3675, 3945, 4263, 5075, 5523, 6575, 7105, 7627, 9205, 12887, 15225, 19725, 21315, 22881, 27615, 35525, 38135, 38661, 46025, 53389, 64435, 106575, 114405, 138075, 160167, 190675, 193305, 266945, 322175, 373723, 572025, 800835, 966525, 1121169, 1334725, 1868615, 4004175, 5605845, 9343075, 28029225]

約数ペア:

[(1, 28029225), (3, 9343075), (5, 5605845), (7, 4004175), (15, 1868615), (21, 1334725), (25, 1121169), (29, 966525), (35, 800835), (49, 572025), (75, 373723), (87, 322175), (105, 266945), (145, 193305), (147, 190675), (175, 160167), (203, 138075), (245, 114405), (263, 106575), (435, 64435), (525, 53389), (609, 46025), (725, 38661), (735, 38135), (789, 35525), (1015, 27615), (1225, 22881), (1315, 21315), (1421, 19725), (1841, 15225), (2175, 12887), (3045, 9205), (3675, 7627), (3945, 7105), (4263, 6575), (5075, 5523)]