25815560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 60825600

約数和(自身を除く): 35010040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 109, 124, 155, 191, 218, 248, 310, 382, 436, 545, 620, 764, 872, 955, 1090, 1240, 1528, 1910, 2180, 3379, 3820, 4360, 5921, 6758, 7640, 11842, 13516, 16895, 20819, 23684, 27032, 29605, 33790, 41638, 47368, 59210, 67580, 83276, 104095, 118420, 135160, 166552, 208190, 236840, 416380, 645389, 832760, 1290778, 2581556, 3226945, 5163112, 6453890, 12907780, 25815560]

約数ペア:

[(1, 25815560), (2, 12907780), (4, 6453890), (5, 5163112), (8, 3226945), (10, 2581556), (20, 1290778), (31, 832760), (40, 645389), (62, 416380), (109, 236840), (124, 208190), (155, 166552), (191, 135160), (218, 118420), (248, 104095), (310, 83276), (382, 67580), (436, 59210), (545, 47368), (620, 41638), (764, 33790), (872, 29605), (955, 27032), (1090, 23684), (1240, 20819), (1528, 16895), (1910, 13516), (2180, 11842), (3379, 7640), (3820, 6758), (4360, 5921)]