201990796400

素因数分解:

$2^4\times 5^2\times {\mathrm{809}}^1\times {\mathrm{624199}}^1$

素因数の和:625026

約数の個数: 60

約数和(自身を含む): 485883522000

約数和(自身を除く): 283892725600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 809, 1618, 3236, 4045, 6472, 8090, 12944, 16180, 20225, 32360, 40450, 64720, 80900, 161800, 323600, 624199, 1248398, 2496796, 3120995, 4993592, 6241990, 9987184, 12483980, 15604975, 24967960, 31209950, 49935920, 62419900, 124839800, 249679600, 504976991, 1009953982, 2019907964, 2524884955, 4039815928, 5049769910, 8079631856, 10099539820, 12624424775, 20199079640, 25248849550, 40398159280, 50497699100, 100995398200, 201990796400]

約数ペア:

[(1, 201990796400), (2, 100995398200), (4, 50497699100), (5, 40398159280), (8, 25248849550), (10, 20199079640), (16, 12624424775), (20, 10099539820), (25, 8079631856), (40, 5049769910), (50, 4039815928), (80, 2524884955), (100, 2019907964), (200, 1009953982), (400, 504976991), (809, 249679600), (1618, 124839800), (3236, 62419900), (4045, 49935920), (6472, 31209950), (8090, 24967960), (12944, 15604975), (16180, 12483980), (20225, 9987184), (32360, 6241990), (40450, 4993592), (64720, 3120995), (80900, 2496796), (161800, 1248398), (323600, 624199)]