398273792

素因数分解:

$2^8\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2039}}^1$

素因数の和:2171

約数の個数: 72

約数和(自身を含む): 917347200

約数和(自身を除く): 519073408

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 109, 112, 128, 218, 224, 256, 436, 448, 763, 872, 896, 1526, 1744, 1792, 2039, 3052, 3488, 4078, 6104, 6976, 8156, 12208, 13952, 14273, 16312, 24416, 27904, 28546, 32624, 48832, 57092, 65248, 97664, 114184, 130496, 195328, 222251, 228368, 260992, 444502, 456736, 521984, 889004, 913472, 1555757, 1778008, 1826944, 3111514, 3556016, 3653888, 6223028, 7112032, 12446056, 14224064, 24892112, 28448128, 49784224, 56896256, 99568448, 199136896, 398273792]

約数ペア:

[(1, 398273792), (2, 199136896), (4, 99568448), (7, 56896256), (8, 49784224), (14, 28448128), (16, 24892112), (28, 14224064), (32, 12446056), (56, 7112032), (64, 6223028), (109, 3653888), (112, 3556016), (128, 3111514), (218, 1826944), (224, 1778008), (256, 1555757), (436, 913472), (448, 889004), (763, 521984), (872, 456736), (896, 444502), (1526, 260992), (1744, 228368), (1792, 222251), (2039, 195328), (3052, 130496), (3488, 114184), (4078, 97664), (6104, 65248), (6976, 57092), (8156, 48832), (12208, 32624), (13952, 28546), (14273, 27904), (16312, 24416)]