91978880

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{419}}^1$

素因数の和:459

約数の個数: 128

約数和(自身を含む): 257040000

約数和(自身を除く): 165061120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 320, 343, 392, 419, 448, 490, 560, 640, 686, 784, 838, 896, 980, 1120, 1372, 1568, 1676, 1715, 1960, 2095, 2240, 2744, 2933, 3136, 3352, 3430, 3920, 4190, 4480, 5488, 5866, 6272, 6704, 6860, 7840, 8380, 10976, 11732, 13408, 13720, 14665, 15680, 16760, 20531, 21952, 23464, 26816, 27440, 29330, 31360, 33520, 41062, 43904, 46928, 53632, 54880, 58660, 67040, 82124, 93856, 102655, 109760, 117320, 134080, 143717, 164248, 187712, 205310, 219520, 234640, 268160, 287434, 328496, 375424, 410620, 469280, 574868, 656992, 718585, 821240, 938560, 1149736, 1313984, 1437170, 1642480, 1877120, 2299472, 2627968, 2874340, 3284960, 4598944, 5748680, 6569920, 9197888, 11497360, 13139840, 18395776, 22994720, 45989440, 91978880]

約数ペア:

[(1, 91978880), (2, 45989440), (4, 22994720), (5, 18395776), (7, 13139840), (8, 11497360), (10, 9197888), (14, 6569920), (16, 5748680), (20, 4598944), (28, 3284960), (32, 2874340), (35, 2627968), (40, 2299472), (49, 1877120), (56, 1642480), (64, 1437170), (70, 1313984), (80, 1149736), (98, 938560), (112, 821240), (128, 718585), (140, 656992), (160, 574868), (196, 469280), (224, 410620), (245, 375424), (280, 328496), (320, 287434), (343, 268160), (392, 234640), (419, 219520), (448, 205310), (490, 187712), (560, 164248), (640, 143717), (686, 134080), (784, 117320), (838, 109760), (896, 102655), (980, 93856), (1120, 82124), (1372, 67040), (1568, 58660), (1676, 54880), (1715, 53632), (1960, 46928), (2095, 43904), (2240, 41062), (2744, 33520), (2933, 31360), (3136, 29330), (3352, 27440), (3430, 26816), (3920, 23464), (4190, 21952), (4480, 20531), (5488, 16760), (5866, 15680), (6272, 14665), (6704, 13720), (6860, 13408), (7840, 11732), (8380, 10976)]