171870820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 429004800

約数和(自身を除く): 257133980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 31, 44, 55, 58, 62, 79, 110, 116, 121, 124, 145, 155, 158, 220, 242, 290, 310, 316, 319, 341, 395, 484, 580, 605, 620, 638, 682, 790, 869, 899, 1210, 1276, 1364, 1580, 1595, 1705, 1738, 1798, 2291, 2420, 2449, 3190, 3410, 3476, 3509, 3596, 3751, 4345, 4495, 4582, 4898, 6380, 6820, 7018, 7502, 8690, 8990, 9164, 9559, 9796, 9889, 11455, 12245, 14036, 15004, 17380, 17545, 17980, 18755, 19118, 19778, 22910, 24490, 25201, 26939, 35090, 37510, 38236, 39556, 45820, 47795, 48980, 49445, 50402, 53878, 70180, 71021, 75020, 95590, 98890, 100804, 107756, 108779, 126005, 134695, 142042, 191180, 197780, 217558, 252010, 269390, 277211, 284084, 296329, 355105, 435116, 504020, 538780, 543895, 554422, 592658, 710210, 781231, 1087790, 1108844, 1185316, 1386055, 1420420, 1481645, 1562462, 2175580, 2772110, 2963290, 3124924, 3906155, 5544220, 5926580, 7812310, 8593541, 15624620, 17187082, 34374164, 42967705, 85935410, 171870820]

約数ペア:

[(1, 171870820), (2, 85935410), (4, 42967705), (5, 34374164), (10, 17187082), (11, 15624620), (20, 8593541), (22, 7812310), (29, 5926580), (31, 5544220), (44, 3906155), (55, 3124924), (58, 2963290), (62, 2772110), (79, 2175580), (110, 1562462), (116, 1481645), (121, 1420420), (124, 1386055), (145, 1185316), (155, 1108844), (158, 1087790), (220, 781231), (242, 710210), (290, 592658), (310, 554422), (316, 543895), (319, 538780), (341, 504020), (395, 435116), (484, 355105), (580, 296329), (605, 284084), (620, 277211), (638, 269390), (682, 252010), (790, 217558), (869, 197780), (899, 191180), (1210, 142042), (1276, 134695), (1364, 126005), (1580, 108779), (1595, 107756), (1705, 100804), (1738, 98890), (1798, 95590), (2291, 75020), (2420, 71021), (2449, 70180), (3190, 53878), (3410, 50402), (3476, 49445), (3509, 48980), (3596, 47795), (3751, 45820), (4345, 39556), (4495, 38236), (4582, 37510), (4898, 35090), (6380, 26939), (6820, 25201), (7018, 24490), (7502, 22910), (8690, 19778), (8990, 19118), (9164, 18755), (9559, 17980), (9796, 17545), (9889, 17380), (11455, 15004), (12245, 14036)]