130781840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{571}}^1$

素因数の和:1000

約数の個数: 80

約数和(自身を含む): 348965760

約数和(自身を除く): 218183920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 409, 560, 571, 818, 1142, 1636, 2045, 2284, 2855, 2863, 3272, 3997, 4090, 4568, 5710, 5726, 6544, 7994, 8180, 9136, 11420, 11452, 14315, 15988, 16360, 19985, 22840, 22904, 28630, 31976, 32720, 39970, 45680, 45808, 57260, 63952, 79940, 114520, 159880, 229040, 233539, 319760, 467078, 934156, 1167695, 1634773, 1868312, 2335390, 3269546, 3736624, 4670780, 6539092, 8173865, 9341560, 13078184, 16347730, 18683120, 26156368, 32695460, 65390920, 130781840]

約数ペア:

[(1, 130781840), (2, 65390920), (4, 32695460), (5, 26156368), (7, 18683120), (8, 16347730), (10, 13078184), (14, 9341560), (16, 8173865), (20, 6539092), (28, 4670780), (35, 3736624), (40, 3269546), (56, 2335390), (70, 1868312), (80, 1634773), (112, 1167695), (140, 934156), (280, 467078), (409, 319760), (560, 233539), (571, 229040), (818, 159880), (1142, 114520), (1636, 79940), (2045, 63952), (2284, 57260), (2855, 45808), (2863, 45680), (3272, 39970), (3997, 32720), (4090, 31976), (4568, 28630), (5710, 22904), (5726, 22840), (6544, 19985), (7994, 16360), (8180, 15988), (9136, 14315), (11420, 11452)]