About the Number

130815420

130815419 ← → 130815421

2進数表記:111110011000001010110111100

漢数字表記:一億三千八十一万五千四百二十

素因数分解:

2 2 × 3 1 × 5 1 × 41 2 × 1297 1

素因数の和:1391
約数の個数: 72
約数和(自身を含む): 375724272
約数和(自身を除く): 244908852

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 1297, 1681, 2460, 2594, 3362, 3891, 5043, 5188, 6485, 6724, 7782, 8405, 10086, 12970, 15564, 16810, 19455, 20172, 25215, 25940, 33620, 38910, 50430, 53177, 77820, 100860, 106354, 159531, 212708, 265885, 319062, 531770, 638124, 797655, 1063540, 1595310, 2180257, 3190620, 4360514, 6540771, 8721028, 10901285, 13081542, 21802570, 26163084, 32703855, 43605140, 65407710, 130815420]

約数ペア:
[(1, 130815420), (2, 65407710), (3, 43605140), (4, 32703855), (5, 26163084), (6, 21802570), (10, 13081542), (12, 10901285), (15, 8721028), (20, 6540771), (30, 4360514), (41, 3190620), (60, 2180257), (82, 1595310), (123, 1063540), (164, 797655), (205, 638124), (246, 531770), (410, 319062), (492, 265885), (615, 212708), (820, 159531), (1230, 106354), (1297, 100860), (1681, 77820), (2460, 53177), (2594, 50430), (3362, 38910), (3891, 33620), (5043, 25940), (5188, 25215), (6485, 20172), (6724, 19455), (7782, 16810), (8405, 15564), (10086, 12970)]

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