About the Number

1855408020

1855408019 ← → 1855408021

2進数表記:1101110100101110100011110010100

漢数字表記:十八億五千五百四十万八千二十

素因数分解:

2 2 × 3 1 × 5 1 × 113 1 × 131 1 × 2089 1

素因数の和:2345
約数の個数: 96
約数和(自身を含む): 5283653760
約数和(自身を除く): 3428245740

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 113, 131, 226, 262, 339, 393, 452, 524, 565, 655, 678, 786, 1130, 1310, 1356, 1572, 1695, 1965, 2089, 2260, 2620, 3390, 3930, 4178, 6267, 6780, 7860, 8356, 10445, 12534, 14803, 20890, 25068, 29606, 31335, 41780, 44409, 59212, 62670, 74015, 88818, 125340, 148030, 177636, 222045, 236057, 273659, 296060, 444090, 472114, 547318, 708171, 820977, 888180, 944228, 1094636, 1180285, 1368295, 1416342, 1641954, 2360570, 2736590, 2832684, 3283908, 3540855, 4104885, 4721140, 5473180, 7081710, 8209770, 14163420, 16419540, 30923467, 61846934, 92770401, 123693868, 154617335, 185540802, 309234670, 371081604, 463852005, 618469340, 927704010, 1855408020]

約数ペア:
[(1, 1855408020), (2, 927704010), (3, 618469340), (4, 463852005), (5, 371081604), (6, 309234670), (10, 185540802), (12, 154617335), (15, 123693868), (20, 92770401), (30, 61846934), (60, 30923467), (113, 16419540), (131, 14163420), (226, 8209770), (262, 7081710), (339, 5473180), (393, 4721140), (452, 4104885), (524, 3540855), (565, 3283908), (655, 2832684), (678, 2736590), (786, 2360570), (1130, 1641954), (1310, 1416342), (1356, 1368295), (1572, 1180285), (1695, 1094636), (1965, 944228), (2089, 888180), (2260, 820977), (2620, 708171), (3390, 547318), (3930, 472114), (4178, 444090), (6267, 296060), (6780, 273659), (7860, 236057), (8356, 222045), (10445, 177636), (12534, 148030), (14803, 125340), (20890, 88818), (25068, 74015), (29606, 62670), (31335, 59212), (41780, 44409)]

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