27997640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 76982400

約数和(自身を除く): 48984760

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 19, 20, 22, 34, 38, 40, 44, 55, 68, 76, 85, 88, 95, 110, 136, 152, 170, 187, 190, 197, 209, 220, 323, 340, 374, 380, 394, 418, 440, 646, 680, 748, 760, 788, 836, 935, 985, 1045, 1292, 1496, 1576, 1615, 1672, 1870, 1970, 2090, 2167, 2584, 3230, 3349, 3553, 3740, 3743, 3940, 4180, 4334, 6460, 6698, 7106, 7480, 7486, 7880, 8360, 8668, 10835, 12920, 13396, 14212, 14972, 16745, 17336, 17765, 18715, 21670, 26792, 28424, 29944, 33490, 35530, 36839, 37430, 41173, 43340, 63631, 66980, 71060, 73678, 74860, 82346, 86680, 127262, 133960, 142120, 147356, 149720, 164692, 184195, 205865, 254524, 294712, 318155, 329384, 368390, 411730, 509048, 636310, 699941, 736780, 823460, 1272620, 1399882, 1473560, 1646920, 2545240, 2799764, 3499705, 5599528, 6999410, 13998820, 27997640]

約数ペア:

[(1, 27997640), (2, 13998820), (4, 6999410), (5, 5599528), (8, 3499705), (10, 2799764), (11, 2545240), (17, 1646920), (19, 1473560), (20, 1399882), (22, 1272620), (34, 823460), (38, 736780), (40, 699941), (44, 636310), (55, 509048), (68, 411730), (76, 368390), (85, 329384), (88, 318155), (95, 294712), (110, 254524), (136, 205865), (152, 184195), (170, 164692), (187, 149720), (190, 147356), (197, 142120), (209, 133960), (220, 127262), (323, 86680), (340, 82346), (374, 74860), (380, 73678), (394, 71060), (418, 66980), (440, 63631), (646, 43340), (680, 41173), (748, 37430), (760, 36839), (788, 35530), (836, 33490), (935, 29944), (985, 28424), (1045, 26792), (1292, 21670), (1496, 18715), (1576, 17765), (1615, 17336), (1672, 16745), (1870, 14972), (1970, 14212), (2090, 13396), (2167, 12920), (2584, 10835), (3230, 8668), (3349, 8360), (3553, 7880), (3740, 7486), (3743, 7480), (3940, 7106), (4180, 6698), (4334, 6460)]