About the Number

1517990020

1517990019 ← → 1517990021

2進数表記:1011010011110101011000010000100

漢数字表記:十五億千七百九十九万二十

素因数分解:

2 2 × 5 1 × 31 1 × 47 1 × 113 1 × 461 1

素因数の和:661
約数の個数: 96
約数和(自身を含む): 3397718016
約数和(自身を除く): 1879727996

約数列:
[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 113, 124, 155, 188, 226, 235, 310, 452, 461, 470, 565, 620, 922, 940, 1130, 1457, 1844, 2260, 2305, 2914, 3503, 4610, 5311, 5828, 7006, 7285, 9220, 10622, 14012, 14291, 14570, 17515, 21244, 21667, 26555, 28582, 29140, 35030, 43334, 52093, 53110, 57164, 70060, 71455, 86668, 104186, 106220, 108335, 142910, 164641, 208372, 216670, 260465, 285820, 329282, 433340, 520930, 658564, 671677, 823205, 1041860, 1343354, 1614883, 1646410, 2448371, 2686708, 3229766, 3292820, 3358385, 4896742, 6459532, 6716770, 8074415, 9793484, 12241855, 13433540, 16148830, 24483710, 32297660, 48967420, 75899501, 151799002, 303598004, 379497505, 758995010, 1517990020]

約数ペア:
[(1, 1517990020), (2, 758995010), (4, 379497505), (5, 303598004), (10, 151799002), (20, 75899501), (31, 48967420), (47, 32297660), (62, 24483710), (94, 16148830), (113, 13433540), (124, 12241855), (155, 9793484), (188, 8074415), (226, 6716770), (235, 6459532), (310, 4896742), (452, 3358385), (461, 3292820), (470, 3229766), (565, 2686708), (620, 2448371), (922, 1646410), (940, 1614883), (1130, 1343354), (1457, 1041860), (1844, 823205), (2260, 671677), (2305, 658564), (2914, 520930), (3503, 433340), (4610, 329282), (5311, 285820), (5828, 260465), (7006, 216670), (7285, 208372), (9220, 164641), (10622, 142910), (14012, 108335), (14291, 106220), (14570, 104186), (17515, 86668), (21244, 71455), (21667, 70060), (26555, 57164), (28582, 53110), (29140, 52093), (35030, 43334)]

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