1691220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 4814208

約数和(自身を除く): 3122988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 397, 426, 710, 794, 852, 1065, 1191, 1420, 1588, 1985, 2130, 2382, 3970, 4260, 4764, 5955, 7940, 11910, 23820, 28187, 56374, 84561, 112748, 140935, 169122, 281870, 338244, 422805, 563740, 845610, 1691220]

約数ペア:

[(1, 1691220), (2, 845610), (3, 563740), (4, 422805), (5, 338244), (6, 281870), (10, 169122), (12, 140935), (15, 112748), (20, 84561), (30, 56374), (60, 28187), (71, 23820), (142, 11910), (213, 7940), (284, 5955), (355, 4764), (397, 4260), (426, 3970), (710, 2382), (794, 2130), (852, 1985), (1065, 1588), (1191, 1420)]