164025100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{659}}^1$

素因数の和:823

約数の個数: 72

約数和(自身を含む): 378100800

約数和(自身を除く): 214075700

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 131, 190, 262, 380, 475, 524, 655, 659, 950, 1310, 1318, 1900, 2489, 2620, 2636, 3275, 3295, 4978, 6550, 6590, 9956, 12445, 12521, 13100, 13180, 16475, 24890, 25042, 32950, 49780, 50084, 62225, 62605, 65900, 86329, 124450, 125210, 172658, 248900, 250420, 313025, 345316, 431645, 626050, 863290, 1252100, 1640251, 1726580, 2158225, 3280502, 4316450, 6561004, 8201255, 8632900, 16402510, 32805020, 41006275, 82012550, 164025100]

約数ペア:

[(1, 164025100), (2, 82012550), (4, 41006275), (5, 32805020), (10, 16402510), (19, 8632900), (20, 8201255), (25, 6561004), (38, 4316450), (50, 3280502), (76, 2158225), (95, 1726580), (100, 1640251), (131, 1252100), (190, 863290), (262, 626050), (380, 431645), (475, 345316), (524, 313025), (655, 250420), (659, 248900), (950, 172658), (1310, 125210), (1318, 124450), (1900, 86329), (2489, 65900), (2620, 62605), (2636, 62225), (3275, 50084), (3295, 49780), (4978, 32950), (6550, 25042), (6590, 24890), (9956, 16475), (12445, 13180), (12521, 13100)]