28075160

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:141

約数の個数: 128

約数和(自身を含む): 73483200

約数和(自身を除く): 45408040

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 41, 53, 68, 76, 82, 85, 95, 106, 136, 152, 164, 170, 190, 205, 212, 265, 323, 328, 340, 380, 410, 424, 530, 646, 680, 697, 760, 779, 820, 901, 1007, 1060, 1292, 1394, 1558, 1615, 1640, 1802, 2014, 2120, 2173, 2584, 2788, 3116, 3230, 3485, 3604, 3895, 4028, 4346, 4505, 5035, 5576, 6232, 6460, 6970, 7208, 7790, 8056, 8692, 9010, 10070, 10865, 12920, 13243, 13940, 15580, 17119, 17384, 18020, 20140, 21730, 26486, 27880, 31160, 34238, 36040, 36941, 40280, 41287, 43460, 52972, 66215, 68476, 73882, 82574, 85595, 86920, 105944, 132430, 136952, 147764, 165148, 171190, 184705, 206435, 264860, 295528, 330296, 342380, 369410, 412870, 529720, 684760, 701879, 738820, 825740, 1403758, 1477640, 1651480, 2807516, 3509395, 5615032, 7018790, 14037580, 28075160]

約数ペア:

[(1, 28075160), (2, 14037580), (4, 7018790), (5, 5615032), (8, 3509395), (10, 2807516), (17, 1651480), (19, 1477640), (20, 1403758), (34, 825740), (38, 738820), (40, 701879), (41, 684760), (53, 529720), (68, 412870), (76, 369410), (82, 342380), (85, 330296), (95, 295528), (106, 264860), (136, 206435), (152, 184705), (164, 171190), (170, 165148), (190, 147764), (205, 136952), (212, 132430), (265, 105944), (323, 86920), (328, 85595), (340, 82574), (380, 73882), (410, 68476), (424, 66215), (530, 52972), (646, 43460), (680, 41287), (697, 40280), (760, 36941), (779, 36040), (820, 34238), (901, 31160), (1007, 27880), (1060, 26486), (1292, 21730), (1394, 20140), (1558, 18020), (1615, 17384), (1640, 17119), (1802, 15580), (2014, 13940), (2120, 13243), (2173, 12920), (2584, 10865), (2788, 10070), (3116, 9010), (3230, 8692), (3485, 8056), (3604, 7790), (3895, 7208), (4028, 6970), (4346, 6460), (4505, 6232), (5035, 5576)]