278375240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1187}}^1$

素因数の和:1263

約数の個数: 128

約数和(自身を含む): 754427520

約数和(自身を除く): 476052280

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 41, 44, 52, 55, 65, 82, 88, 104, 110, 130, 143, 164, 205, 220, 260, 286, 328, 410, 440, 451, 520, 533, 572, 715, 820, 902, 1066, 1144, 1187, 1430, 1640, 1804, 2132, 2255, 2374, 2665, 2860, 3608, 4264, 4510, 4748, 5330, 5720, 5863, 5935, 9020, 9496, 10660, 11726, 11870, 13057, 15431, 18040, 21320, 23452, 23740, 26114, 29315, 30862, 46904, 47480, 48667, 52228, 58630, 61724, 65285, 77155, 97334, 104456, 117260, 123448, 130570, 154310, 169741, 194668, 234520, 243335, 261140, 308620, 339482, 389336, 486670, 522280, 535337, 617240, 632671, 678964, 848705, 973340, 1070674, 1265342, 1357928, 1697410, 1946680, 2141348, 2530684, 2676685, 3163355, 3394820, 4282696, 5061368, 5353370, 6326710, 6789640, 6959381, 10706740, 12653420, 13918762, 21413480, 25306840, 27837524, 34796905, 55675048, 69593810, 139187620, 278375240]

約数ペア:

[(1, 278375240), (2, 139187620), (4, 69593810), (5, 55675048), (8, 34796905), (10, 27837524), (11, 25306840), (13, 21413480), (20, 13918762), (22, 12653420), (26, 10706740), (40, 6959381), (41, 6789640), (44, 6326710), (52, 5353370), (55, 5061368), (65, 4282696), (82, 3394820), (88, 3163355), (104, 2676685), (110, 2530684), (130, 2141348), (143, 1946680), (164, 1697410), (205, 1357928), (220, 1265342), (260, 1070674), (286, 973340), (328, 848705), (410, 678964), (440, 632671), (451, 617240), (520, 535337), (533, 522280), (572, 486670), (715, 389336), (820, 339482), (902, 308620), (1066, 261140), (1144, 243335), (1187, 234520), (1430, 194668), (1640, 169741), (1804, 154310), (2132, 130570), (2255, 123448), (2374, 117260), (2665, 104456), (2860, 97334), (3608, 77155), (4264, 65285), (4510, 61724), (4748, 58630), (5330, 52228), (5720, 48667), (5863, 47480), (5935, 46904), (9020, 30862), (9496, 29315), (10660, 26114), (11726, 23740), (11870, 23452), (13057, 21320), (15431, 18040)]