493713307640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1987}}^1\times {\mathrm{887399}}^1$

素因数の和:889404

約数の個数: 64

約数和(自身を含む): 1270188864000

約数和(自身を除く): 776475556360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1987, 3974, 7948, 9935, 13909, 15896, 19870, 27818, 39740, 55636, 69545, 79480, 111272, 139090, 278180, 556360, 887399, 1774798, 3549596, 4436995, 6211793, 7099192, 8873990, 12423586, 17747980, 24847172, 31058965, 35495960, 49694344, 62117930, 124235860, 248471720, 1763261813, 3526523626, 7053047252, 8816309065, 12342832691, 14106094504, 17632618130, 24685665382, 35265236260, 49371330764, 61714163455, 70530472520, 98742661528, 123428326910, 246856653820, 493713307640]

約数ペア:

[(1, 493713307640), (2, 246856653820), (4, 123428326910), (5, 98742661528), (7, 70530472520), (8, 61714163455), (10, 49371330764), (14, 35265236260), (20, 24685665382), (28, 17632618130), (35, 14106094504), (40, 12342832691), (56, 8816309065), (70, 7053047252), (140, 3526523626), (280, 1763261813), (1987, 248471720), (3974, 124235860), (7948, 62117930), (9935, 49694344), (13909, 35495960), (15896, 31058965), (19870, 24847172), (27818, 17747980), (39740, 12423586), (55636, 8873990), (69545, 7099192), (79480, 6211793), (111272, 4436995), (139090, 3549596), (278180, 1774798), (556360, 887399)]