390076720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:315

約数の個数: 160

約数和(自身を含む): 1039933440

約数和(自身を除く): 649856720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 79, 80, 88, 110, 124, 155, 158, 176, 181, 220, 248, 310, 316, 341, 362, 395, 440, 496, 620, 632, 682, 724, 790, 869, 880, 905, 1240, 1264, 1364, 1448, 1580, 1705, 1738, 1810, 1991, 2449, 2480, 2728, 2896, 3160, 3410, 3476, 3620, 3982, 4345, 4898, 5456, 5611, 6320, 6820, 6952, 7240, 7964, 8690, 9796, 9955, 11222, 12245, 13640, 13904, 14299, 14480, 15928, 17380, 19592, 19910, 22444, 24490, 26939, 27280, 28055, 28598, 31856, 34760, 39184, 39820, 44888, 48980, 53878, 56110, 57196, 61721, 69520, 71495, 79640, 89776, 97960, 107756, 112220, 114392, 123442, 134695, 142990, 157289, 159280, 195920, 215512, 224440, 228784, 246884, 269390, 285980, 308605, 314578, 431024, 443269, 448880, 493768, 538780, 571960, 617210, 629156, 786445, 886538, 987536, 1077560, 1143920, 1234420, 1258312, 1572890, 1773076, 2155120, 2216345, 2468840, 2516624, 3145780, 3546152, 4432690, 4875959, 4937680, 6291560, 7092304, 8865380, 9751918, 12583120, 17730760, 19503836, 24379795, 35461520, 39007672, 48759590, 78015344, 97519180, 195038360, 390076720]

約数ペア:

[(1, 390076720), (2, 195038360), (4, 97519180), (5, 78015344), (8, 48759590), (10, 39007672), (11, 35461520), (16, 24379795), (20, 19503836), (22, 17730760), (31, 12583120), (40, 9751918), (44, 8865380), (55, 7092304), (62, 6291560), (79, 4937680), (80, 4875959), (88, 4432690), (110, 3546152), (124, 3145780), (155, 2516624), (158, 2468840), (176, 2216345), (181, 2155120), (220, 1773076), (248, 1572890), (310, 1258312), (316, 1234420), (341, 1143920), (362, 1077560), (395, 987536), (440, 886538), (496, 786445), (620, 629156), (632, 617210), (682, 571960), (724, 538780), (790, 493768), (869, 448880), (880, 443269), (905, 431024), (1240, 314578), (1264, 308605), (1364, 285980), (1448, 269390), (1580, 246884), (1705, 228784), (1738, 224440), (1810, 215512), (1991, 195920), (2449, 159280), (2480, 157289), (2728, 142990), (2896, 134695), (3160, 123442), (3410, 114392), (3476, 112220), (3620, 107756), (3982, 97960), (4345, 89776), (4898, 79640), (5456, 71495), (5611, 69520), (6320, 61721), (6820, 57196), (6952, 56110), (7240, 53878), (7964, 48980), (8690, 44888), (9796, 39820), (9955, 39184), (11222, 34760), (12245, 31856), (13640, 28598), (13904, 28055), (14299, 27280), (14480, 26939), (15928, 24490), (17380, 22444), (19592, 19910)]