54995980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 127833552

約数和(自身を除く): 72837572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 169, 212, 260, 265, 307, 338, 530, 614, 676, 689, 845, 1060, 1228, 1378, 1535, 1690, 2756, 3070, 3380, 3445, 3991, 6140, 6890, 7982, 8957, 13780, 15964, 16271, 17914, 19955, 32542, 35828, 39910, 44785, 51883, 65084, 79820, 81355, 89570, 103766, 162710, 179140, 207532, 211523, 259415, 325420, 423046, 518830, 846092, 1037660, 1057615, 2115230, 2749799, 4230460, 5499598, 10999196, 13748995, 27497990, 54995980]

約数ペア:

[(1, 54995980), (2, 27497990), (4, 13748995), (5, 10999196), (10, 5499598), (13, 4230460), (20, 2749799), (26, 2115230), (52, 1057615), (53, 1037660), (65, 846092), (106, 518830), (130, 423046), (169, 325420), (212, 259415), (260, 211523), (265, 207532), (307, 179140), (338, 162710), (530, 103766), (614, 89570), (676, 81355), (689, 79820), (845, 65084), (1060, 51883), (1228, 44785), (1378, 39910), (1535, 35828), (1690, 32542), (2756, 19955), (3070, 17914), (3380, 16271), (3445, 15964), (3991, 13780), (6140, 8957), (6890, 7982)]