138528100

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:373

約数の個数: 72

約数和(自身を含む): 309355200

約数和(自身を除く): 170827100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 109, 142, 179, 218, 284, 355, 358, 436, 545, 710, 716, 895, 1090, 1420, 1775, 1790, 2180, 2725, 3550, 3580, 4475, 5450, 7100, 7739, 8950, 10900, 12709, 15478, 17900, 19511, 25418, 30956, 38695, 39022, 50836, 63545, 77390, 78044, 97555, 127090, 154780, 193475, 195110, 254180, 317725, 386950, 390220, 487775, 635450, 773900, 975550, 1270900, 1385281, 1951100, 2770562, 5541124, 6926405, 13852810, 27705620, 34632025, 69264050, 138528100]

約数ペア:

[(1, 138528100), (2, 69264050), (4, 34632025), (5, 27705620), (10, 13852810), (20, 6926405), (25, 5541124), (50, 2770562), (71, 1951100), (100, 1385281), (109, 1270900), (142, 975550), (179, 773900), (218, 635450), (284, 487775), (355, 390220), (358, 386950), (436, 317725), (545, 254180), (710, 195110), (716, 193475), (895, 154780), (1090, 127090), (1420, 97555), (1775, 78044), (1790, 77390), (2180, 63545), (2725, 50836), (3550, 39022), (3580, 38695), (4475, 30956), (5450, 25418), (7100, 19511), (7739, 17900), (8950, 15478), (10900, 12709)]