275861560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:321

約数の個数: 128

約数和(自身を含む): 700761600

約数和(自身を除く): 424900040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 109, 124, 130, 155, 157, 218, 248, 260, 310, 314, 403, 436, 520, 545, 620, 628, 785, 806, 872, 1090, 1240, 1256, 1417, 1570, 1612, 2015, 2041, 2180, 2834, 3140, 3224, 3379, 4030, 4082, 4360, 4867, 5668, 6280, 6758, 7085, 8060, 8164, 9734, 10205, 11336, 13516, 14170, 16120, 16328, 16895, 17113, 19468, 20410, 24335, 27032, 28340, 33790, 34226, 38936, 40820, 43927, 48670, 56680, 63271, 67580, 68452, 81640, 85565, 87854, 97340, 126542, 135160, 136904, 171130, 175708, 194680, 219635, 222469, 253084, 316355, 342260, 351416, 439270, 444938, 506168, 530503, 632710, 684520, 878540, 889876, 1061006, 1112345, 1265420, 1757080, 1779752, 2122012, 2224690, 2530840, 2652515, 4244024, 4449380, 5305030, 6896539, 8898760, 10610060, 13793078, 21220120, 27586156, 34482695, 55172312, 68965390, 137930780, 275861560]

約数ペア:

[(1, 275861560), (2, 137930780), (4, 68965390), (5, 55172312), (8, 34482695), (10, 27586156), (13, 21220120), (20, 13793078), (26, 10610060), (31, 8898760), (40, 6896539), (52, 5305030), (62, 4449380), (65, 4244024), (104, 2652515), (109, 2530840), (124, 2224690), (130, 2122012), (155, 1779752), (157, 1757080), (218, 1265420), (248, 1112345), (260, 1061006), (310, 889876), (314, 878540), (403, 684520), (436, 632710), (520, 530503), (545, 506168), (620, 444938), (628, 439270), (785, 351416), (806, 342260), (872, 316355), (1090, 253084), (1240, 222469), (1256, 219635), (1417, 194680), (1570, 175708), (1612, 171130), (2015, 136904), (2041, 135160), (2180, 126542), (2834, 97340), (3140, 87854), (3224, 85565), (3379, 81640), (4030, 68452), (4082, 67580), (4360, 63271), (4867, 56680), (5668, 48670), (6280, 43927), (6758, 40820), (7085, 38936), (8060, 34226), (8164, 33790), (9734, 28340), (10205, 27032), (11336, 24335), (13516, 20410), (14170, 19468), (16120, 17113), (16328, 16895)]