20587425

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 36729792

約数和(自身を除く): 16142367

約数列:

[1, 3, 5, 15, 17, 25, 51, 67, 75, 85, 201, 241, 255, 335, 425, 723, 1005, 1139, 1205, 1275, 1675, 3417, 3615, 4097, 5025, 5695, 6025, 12291, 16147, 17085, 18075, 20485, 28475, 48441, 61455, 80735, 85425, 102425, 242205, 274499, 307275, 403675, 823497, 1211025, 1372495, 4117485, 6862475, 20587425]

約数ペア:

[(1, 20587425), (3, 6862475), (5, 4117485), (15, 1372495), (17, 1211025), (25, 823497), (51, 403675), (67, 307275), (75, 274499), (85, 242205), (201, 102425), (241, 85425), (255, 80735), (335, 61455), (425, 48441), (723, 28475), (1005, 20485), (1139, 18075), (1205, 17085), (1275, 16147), (1675, 12291), (3417, 6025), (3615, 5695), (4097, 5025)]