219983920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:399

約数の個数: 120

約数和(自身を含む): 566120016

約数和(自身を除く): 346136096

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 169, 208, 212, 260, 265, 307, 338, 424, 520, 530, 614, 676, 689, 845, 848, 1040, 1060, 1228, 1352, 1378, 1535, 1690, 2120, 2456, 2704, 2756, 3070, 3380, 3445, 3991, 4240, 4912, 5512, 6140, 6760, 6890, 7982, 8957, 11024, 12280, 13520, 13780, 15964, 16271, 17914, 19955, 24560, 27560, 31928, 32542, 35828, 39910, 44785, 51883, 55120, 63856, 65084, 71656, 79820, 81355, 89570, 103766, 130168, 143312, 159640, 162710, 179140, 207532, 211523, 259415, 260336, 319280, 325420, 358280, 415064, 423046, 518830, 650840, 716560, 830128, 846092, 1037660, 1057615, 1301680, 1692184, 2075320, 2115230, 2749799, 3384368, 4150640, 4230460, 5499598, 8460920, 10999196, 13748995, 16921840, 21998392, 27497990, 43996784, 54995980, 109991960, 219983920]

約数ペア:

[(1, 219983920), (2, 109991960), (4, 54995980), (5, 43996784), (8, 27497990), (10, 21998392), (13, 16921840), (16, 13748995), (20, 10999196), (26, 8460920), (40, 5499598), (52, 4230460), (53, 4150640), (65, 3384368), (80, 2749799), (104, 2115230), (106, 2075320), (130, 1692184), (169, 1301680), (208, 1057615), (212, 1037660), (260, 846092), (265, 830128), (307, 716560), (338, 650840), (424, 518830), (520, 423046), (530, 415064), (614, 358280), (676, 325420), (689, 319280), (845, 260336), (848, 259415), (1040, 211523), (1060, 207532), (1228, 179140), (1352, 162710), (1378, 159640), (1535, 143312), (1690, 130168), (2120, 103766), (2456, 89570), (2704, 81355), (2756, 79820), (3070, 71656), (3380, 65084), (3445, 63856), (3991, 55120), (4240, 51883), (4912, 44785), (5512, 39910), (6140, 35828), (6760, 32542), (6890, 31928), (7982, 27560), (8957, 24560), (11024, 19955), (12280, 17914), (13520, 16271), (13780, 15964)]