28021360

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 69120576

約数和(自身を除く): 41099216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 97, 115, 157, 184, 194, 230, 314, 368, 388, 460, 485, 628, 776, 785, 920, 970, 1256, 1552, 1570, 1840, 1940, 2231, 2512, 3140, 3611, 3880, 4462, 6280, 7222, 7760, 8924, 11155, 12560, 14444, 15229, 17848, 18055, 22310, 28888, 30458, 35696, 36110, 44620, 57776, 60916, 72220, 76145, 89240, 121832, 144440, 152290, 178480, 243664, 288880, 304580, 350267, 609160, 700534, 1218320, 1401068, 1751335, 2802136, 3502670, 5604272, 7005340, 14010680, 28021360]

約数ペア:

[(1, 28021360), (2, 14010680), (4, 7005340), (5, 5604272), (8, 3502670), (10, 2802136), (16, 1751335), (20, 1401068), (23, 1218320), (40, 700534), (46, 609160), (80, 350267), (92, 304580), (97, 288880), (115, 243664), (157, 178480), (184, 152290), (194, 144440), (230, 121832), (314, 89240), (368, 76145), (388, 72220), (460, 60916), (485, 57776), (628, 44620), (776, 36110), (785, 35696), (920, 30458), (970, 28888), (1256, 22310), (1552, 18055), (1570, 17848), (1840, 15229), (1940, 14444), (2231, 12560), (2512, 11155), (3140, 8924), (3611, 7760), (3880, 7222), (4462, 6280)]