77877660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{26489}}^1$

素因数の和:26515

約数の個数: 72

約数和(自身を含む): 253668240

約数和(自身を除く): 175790580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 26489, 52978, 79467, 105956, 132445, 158934, 185423, 264890, 317868, 370846, 397335, 529780, 556269, 741692, 794670, 927115, 1112538, 1297961, 1589340, 1854230, 2225076, 2595922, 2781345, 3708460, 3893883, 5191844, 5562690, 6489805, 7787766, 11125380, 12979610, 15575532, 19469415, 25959220, 38938830, 77877660]

約数ペア:

[(1, 77877660), (2, 38938830), (3, 25959220), (4, 19469415), (5, 15575532), (6, 12979610), (7, 11125380), (10, 7787766), (12, 6489805), (14, 5562690), (15, 5191844), (20, 3893883), (21, 3708460), (28, 2781345), (30, 2595922), (35, 2225076), (42, 1854230), (49, 1589340), (60, 1297961), (70, 1112538), (84, 927115), (98, 794670), (105, 741692), (140, 556269), (147, 529780), (196, 397335), (210, 370846), (245, 317868), (294, 264890), (420, 185423), (490, 158934), (588, 132445), (735, 105956), (980, 79467), (1470, 52978), (2940, 26489)]