420869488

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{317}}^1\times {\mathrm{491}}^1$

素因数の和:842

約数の個数: 60

約数和(自身を含む): 887574888

約数和(自身を除く): 466705400

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 317, 338, 491, 634, 676, 982, 1268, 1352, 1964, 2536, 2704, 3928, 4121, 5072, 6383, 7856, 8242, 12766, 16484, 25532, 32968, 51064, 53573, 65936, 82979, 102128, 107146, 155647, 165958, 214292, 311294, 331916, 428584, 622588, 663832, 857168, 1245176, 1327664, 2023411, 2490352, 4046822, 8093644, 16187288, 26304343, 32374576, 52608686, 105217372, 210434744, 420869488]

約数ペア:

[(1, 420869488), (2, 210434744), (4, 105217372), (8, 52608686), (13, 32374576), (16, 26304343), (26, 16187288), (52, 8093644), (104, 4046822), (169, 2490352), (208, 2023411), (317, 1327664), (338, 1245176), (491, 857168), (634, 663832), (676, 622588), (982, 428584), (1268, 331916), (1352, 311294), (1964, 214292), (2536, 165958), (2704, 155647), (3928, 107146), (4121, 102128), (5072, 82979), (6383, 65936), (7856, 53573), (8242, 51064), (12766, 32968), (16484, 25532)]