28367560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3209}}^1$

素因数の和:3250

約数の個数: 64

約数和(自身を含む): 72802800

約数和(自身を除く): 44435240

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 3209, 4420, 6418, 8840, 12836, 16045, 25672, 32090, 41717, 54553, 64180, 83434, 109106, 128360, 166868, 208585, 218212, 272765, 333736, 417170, 436424, 545530, 709189, 834340, 1091060, 1418378, 1668680, 2182120, 2836756, 3545945, 5673512, 7091890, 14183780, 28367560]

約数ペア:

[(1, 28367560), (2, 14183780), (4, 7091890), (5, 5673512), (8, 3545945), (10, 2836756), (13, 2182120), (17, 1668680), (20, 1418378), (26, 1091060), (34, 834340), (40, 709189), (52, 545530), (65, 436424), (68, 417170), (85, 333736), (104, 272765), (130, 218212), (136, 208585), (170, 166868), (221, 128360), (260, 109106), (340, 83434), (442, 64180), (520, 54553), (680, 41717), (884, 32090), (1105, 25672), (1768, 16045), (2210, 12836), (3209, 8840), (4420, 6418)]