18488860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 45722880

約数和(自身を除く): 27234020

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 47, 52, 65, 68, 85, 89, 94, 130, 170, 178, 188, 221, 235, 260, 340, 356, 442, 445, 470, 611, 799, 884, 890, 940, 1105, 1157, 1222, 1513, 1598, 1780, 2210, 2314, 2444, 3026, 3055, 3196, 3995, 4183, 4420, 4628, 5785, 6052, 6110, 7565, 7990, 8366, 10387, 11570, 12220, 15130, 15980, 16732, 19669, 20774, 20915, 23140, 30260, 39338, 41548, 41830, 51935, 54379, 71111, 78676, 83660, 98345, 103870, 108758, 142222, 196690, 207740, 217516, 271895, 284444, 355555, 393380, 543790, 711110, 924443, 1087580, 1422220, 1848886, 3697772, 4622215, 9244430, 18488860]

約数ペア:

[(1, 18488860), (2, 9244430), (4, 4622215), (5, 3697772), (10, 1848886), (13, 1422220), (17, 1087580), (20, 924443), (26, 711110), (34, 543790), (47, 393380), (52, 355555), (65, 284444), (68, 271895), (85, 217516), (89, 207740), (94, 196690), (130, 142222), (170, 108758), (178, 103870), (188, 98345), (221, 83660), (235, 78676), (260, 71111), (340, 54379), (356, 51935), (442, 41830), (445, 41548), (470, 39338), (611, 30260), (799, 23140), (884, 20915), (890, 20774), (940, 19669), (1105, 16732), (1157, 15980), (1222, 15130), (1513, 12220), (1598, 11570), (1780, 10387), (2210, 8366), (2314, 7990), (2444, 7565), (3026, 6110), (3055, 6052), (3196, 5785), (3995, 4628), (4183, 4420)]