4988450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 10044000

約数和(自身を除く): 5055550

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 59, 89, 95, 118, 178, 190, 295, 445, 475, 590, 890, 950, 1121, 1475, 1691, 2225, 2242, 2950, 3382, 4450, 5251, 5605, 8455, 10502, 11210, 16910, 26255, 28025, 42275, 52510, 56050, 84550, 99769, 131275, 199538, 262550, 498845, 997690, 2494225, 4988450]

約数ペア:

[(1, 4988450), (2, 2494225), (5, 997690), (10, 498845), (19, 262550), (25, 199538), (38, 131275), (50, 99769), (59, 84550), (89, 56050), (95, 52510), (118, 42275), (178, 28025), (190, 26255), (295, 16910), (445, 11210), (475, 10502), (590, 8455), (890, 5605), (950, 5251), (1121, 4450), (1475, 3382), (1691, 2950), (2225, 2242)]