20276240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{877}}^1$

素因数の和:924

約数の個数: 60

約数和(自身を含む): 50135556

約数和(自身を除く): 29859316

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 877, 1156, 1360, 1445, 1754, 2312, 2890, 3508, 4385, 4624, 5780, 7016, 8770, 11560, 14032, 14909, 17540, 23120, 29818, 35080, 59636, 70160, 74545, 119272, 149090, 238544, 253453, 298180, 506906, 596360, 1013812, 1192720, 1267265, 2027624, 2534530, 4055248, 5069060, 10138120, 20276240]

約数ペア:

[(1, 20276240), (2, 10138120), (4, 5069060), (5, 4055248), (8, 2534530), (10, 2027624), (16, 1267265), (17, 1192720), (20, 1013812), (34, 596360), (40, 506906), (68, 298180), (80, 253453), (85, 238544), (136, 149090), (170, 119272), (272, 74545), (289, 70160), (340, 59636), (578, 35080), (680, 29818), (877, 23120), (1156, 17540), (1360, 14909), (1445, 14032), (1754, 11560), (2312, 8770), (2890, 7016), (3508, 5780), (4385, 4624)]