201857900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{811}}^1$

素因数の和:975

約数の個数: 72

約数和(自身を含む): 465178560

約数和(自身を除く): 263320660

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 131, 190, 262, 380, 475, 524, 655, 811, 950, 1310, 1622, 1900, 2489, 2620, 3244, 3275, 4055, 4978, 6550, 8110, 9956, 12445, 13100, 15409, 16220, 20275, 24890, 30818, 40550, 49780, 61636, 62225, 77045, 81100, 106241, 124450, 154090, 212482, 248900, 308180, 385225, 424964, 531205, 770450, 1062410, 1540900, 2018579, 2124820, 2656025, 4037158, 5312050, 8074316, 10092895, 10624100, 20185790, 40371580, 50464475, 100928950, 201857900]

約数ペア:

[(1, 201857900), (2, 100928950), (4, 50464475), (5, 40371580), (10, 20185790), (19, 10624100), (20, 10092895), (25, 8074316), (38, 5312050), (50, 4037158), (76, 2656025), (95, 2124820), (100, 2018579), (131, 1540900), (190, 1062410), (262, 770450), (380, 531205), (475, 424964), (524, 385225), (655, 308180), (811, 248900), (950, 212482), (1310, 154090), (1622, 124450), (1900, 106241), (2489, 81100), (2620, 77045), (3244, 62225), (3275, 61636), (4055, 49780), (4978, 40550), (6550, 30818), (8110, 24890), (9956, 20275), (12445, 16220), (13100, 15409)]