1388991520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{5189}}^1$

素因数の和:5450

約数の個数: 96

約数和(自身を含む): 3766694400

約数和(自身を除く): 2377702880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 239, 280, 478, 560, 956, 1120, 1195, 1673, 1912, 2390, 3346, 3824, 4780, 5189, 6692, 7648, 8365, 9560, 10378, 13384, 16730, 19120, 20756, 25945, 26768, 33460, 36323, 38240, 41512, 51890, 53536, 66920, 72646, 83024, 103780, 133840, 145292, 166048, 181615, 207560, 267680, 290584, 363230, 415120, 581168, 726460, 830240, 1162336, 1240171, 1452920, 2480342, 2905840, 4960684, 5811680, 6200855, 8681197, 9921368, 12401710, 17362394, 19842736, 24803420, 34724788, 39685472, 43405985, 49606840, 69449576, 86811970, 99213680, 138899152, 173623940, 198427360, 277798304, 347247880, 694495760, 1388991520]

約数ペア:

[(1, 1388991520), (2, 694495760), (4, 347247880), (5, 277798304), (7, 198427360), (8, 173623940), (10, 138899152), (14, 99213680), (16, 86811970), (20, 69449576), (28, 49606840), (32, 43405985), (35, 39685472), (40, 34724788), (56, 24803420), (70, 19842736), (80, 17362394), (112, 12401710), (140, 9921368), (160, 8681197), (224, 6200855), (239, 5811680), (280, 4960684), (478, 2905840), (560, 2480342), (956, 1452920), (1120, 1240171), (1195, 1162336), (1673, 830240), (1912, 726460), (2390, 581168), (3346, 415120), (3824, 363230), (4780, 290584), (5189, 267680), (6692, 207560), (7648, 181615), (8365, 166048), (9560, 145292), (10378, 133840), (13384, 103780), (16730, 83024), (19120, 72646), (20756, 66920), (25945, 53536), (26768, 51890), (33460, 41512), (36323, 38240)]