81619380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{523}}^1$

素因数の和:575

約数の個数: 144

約数和(自身を含む): 270258240

約数和(自身を除く): 188638860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 85, 90, 102, 108, 135, 153, 170, 180, 204, 255, 270, 289, 306, 340, 459, 510, 523, 540, 578, 612, 765, 867, 918, 1020, 1046, 1156, 1445, 1530, 1569, 1734, 1836, 2092, 2295, 2601, 2615, 2890, 3060, 3138, 3468, 4335, 4590, 4707, 5202, 5230, 5780, 6276, 7803, 7845, 8670, 8891, 9180, 9414, 10404, 10460, 13005, 14121, 15606, 15690, 17340, 17782, 18828, 23535, 26010, 26673, 28242, 31212, 31380, 35564, 39015, 44455, 47070, 52020, 53346, 56484, 70605, 78030, 80019, 88910, 94140, 106692, 133365, 141210, 151147, 156060, 160038, 177820, 240057, 266730, 282420, 302294, 320076, 400095, 453441, 480114, 533460, 604588, 755735, 800190, 906882, 960228, 1200285, 1360323, 1511470, 1600380, 1813764, 2267205, 2400570, 2720646, 3022940, 4080969, 4534410, 4801140, 5441292, 6801615, 8161938, 9068820, 13603230, 16323876, 20404845, 27206460, 40809690, 81619380]

約数ペア:

[(1, 81619380), (2, 40809690), (3, 27206460), (4, 20404845), (5, 16323876), (6, 13603230), (9, 9068820), (10, 8161938), (12, 6801615), (15, 5441292), (17, 4801140), (18, 4534410), (20, 4080969), (27, 3022940), (30, 2720646), (34, 2400570), (36, 2267205), (45, 1813764), (51, 1600380), (54, 1511470), (60, 1360323), (68, 1200285), (85, 960228), (90, 906882), (102, 800190), (108, 755735), (135, 604588), (153, 533460), (170, 480114), (180, 453441), (204, 400095), (255, 320076), (270, 302294), (289, 282420), (306, 266730), (340, 240057), (459, 177820), (510, 160038), (523, 156060), (540, 151147), (578, 141210), (612, 133365), (765, 106692), (867, 94140), (918, 88910), (1020, 80019), (1046, 78030), (1156, 70605), (1445, 56484), (1530, 53346), (1569, 52020), (1734, 47070), (1836, 44455), (2092, 39015), (2295, 35564), (2601, 31380), (2615, 31212), (2890, 28242), (3060, 26673), (3138, 26010), (3468, 23535), (4335, 18828), (4590, 17782), (4707, 17340), (5202, 15690), (5230, 15606), (5780, 14121), (6276, 13005), (7803, 10460), (7845, 10404), (8670, 9414), (8891, 9180)]