778763960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{9539}}^1$

素因数の和:9720

約数の個数: 64

約数和(自身を含む): 1899223200

約数和(自身を除く): 1120459240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 520, 628, 785, 1256, 1570, 2041, 3140, 4082, 6280, 8164, 9539, 10205, 16328, 19078, 20410, 38156, 40820, 47695, 76312, 81640, 95390, 124007, 190780, 248014, 381560, 496028, 620035, 992056, 1240070, 1497623, 2480140, 2995246, 4960280, 5990492, 7488115, 11980984, 14976230, 19469099, 29952460, 38938198, 59904920, 77876396, 97345495, 155752792, 194690990, 389381980, 778763960]

約数ペア:

[(1, 778763960), (2, 389381980), (4, 194690990), (5, 155752792), (8, 97345495), (10, 77876396), (13, 59904920), (20, 38938198), (26, 29952460), (40, 19469099), (52, 14976230), (65, 11980984), (104, 7488115), (130, 5990492), (157, 4960280), (260, 2995246), (314, 2480140), (520, 1497623), (628, 1240070), (785, 992056), (1256, 620035), (1570, 496028), (2041, 381560), (3140, 248014), (4082, 190780), (6280, 124007), (8164, 95390), (9539, 81640), (10205, 76312), (16328, 47695), (19078, 40820), (20410, 38156)]