4181900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 9999360

約数和(自身を除く): 5817460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 71, 76, 95, 100, 124, 142, 155, 190, 284, 310, 355, 380, 475, 589, 620, 710, 775, 950, 1178, 1349, 1420, 1550, 1775, 1900, 2201, 2356, 2698, 2945, 3100, 3550, 4402, 5396, 5890, 6745, 7100, 8804, 11005, 11780, 13490, 14725, 22010, 26980, 29450, 33725, 41819, 44020, 55025, 58900, 67450, 83638, 110050, 134900, 167276, 209095, 220100, 418190, 836380, 1045475, 2090950, 4181900]

約数ペア:

[(1, 4181900), (2, 2090950), (4, 1045475), (5, 836380), (10, 418190), (19, 220100), (20, 209095), (25, 167276), (31, 134900), (38, 110050), (50, 83638), (62, 67450), (71, 58900), (76, 55025), (95, 44020), (100, 41819), (124, 33725), (142, 29450), (155, 26980), (190, 22010), (284, 14725), (310, 13490), (355, 11780), (380, 11005), (475, 8804), (589, 7100), (620, 6745), (710, 5890), (775, 5396), (950, 4402), (1178, 3550), (1349, 3100), (1420, 2945), (1550, 2698), (1775, 2356), (1900, 2201)]