20157989985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{2153}}^1\times {\mathrm{29723}}^1$

素因数の和:31894

約数の個数: 48

約数和(自身を含む): 39951909504

約数和(自身を除く): 19793919519

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 2153, 6459, 10765, 15071, 19377, 29723, 32295, 45213, 75355, 89169, 96885, 135639, 148615, 208061, 226065, 267507, 445845, 624183, 678195, 1040305, 1337535, 1872549, 3120915, 9362745, 63993619, 191980857, 319968095, 447955333, 575942571, 959904285, 1343865999, 2239776665, 2879712855, 4031597997, 6719329995, 20157989985]

約数ペア:

[(1, 20157989985), (3, 6719329995), (5, 4031597997), (7, 2879712855), (9, 2239776665), (15, 1343865999), (21, 959904285), (35, 575942571), (45, 447955333), (63, 319968095), (105, 191980857), (315, 63993619), (2153, 9362745), (6459, 3120915), (10765, 1872549), (15071, 1337535), (19377, 1040305), (29723, 678195), (32295, 624183), (45213, 445845), (75355, 267507), (89169, 226065), (96885, 208061), (135639, 148615)]