About the Number

1981443156940

1981443156939 ← → 1981443156941

2進数表記:11100110101010111001101110010101111001100

漢数字表記:一兆九千八百十四億四千三百十五万六千九百四十

素因数分解:

2 2 × 5 1 × 13 1 × 17 1 × 5861 1 × 76487 1

素因数の和:82387
約数の個数: 96
約数和(自身を含む): 4745576191104
約数和(自身を除く): 2764133034164

約数列:
[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 5861, 11722, 23444, 29305, 58610, 76193, 76487, 99637, 117220, 152386, 152974, 199274, 304772, 305948, 380965, 382435, 398548, 498185, 761930, 764870, 994331, 996370, 1295281, 1300279, 1523860, 1529740, 1988662, 1992740, 2590562, 2600558, 3977324, 4971655, 5181124, 5201116, 6476405, 6501395, 9943310, 12952810, 13002790, 16903627, 19886620, 25905620, 26005580, 33807254, 67614508, 84518135, 169036270, 338072540, 448290307, 896580614, 1793161228, 2241451535, 4482903070, 5827773991, 7620935219, 8965806140, 11655547982, 15241870438, 23311095964, 29138869955, 30483740876, 38104676095, 58277739910, 76209352190, 99072157847, 116555479820, 152418704380, 198144315694, 396288631388, 495360789235, 990721578470, 1981443156940]

約数ペア:
[(1, 1981443156940), (2, 990721578470), (4, 495360789235), (5, 396288631388), (10, 198144315694), (13, 152418704380), (17, 116555479820), (20, 99072157847), (26, 76209352190), (34, 58277739910), (52, 38104676095), (65, 30483740876), (68, 29138869955), (85, 23311095964), (130, 15241870438), (170, 11655547982), (221, 8965806140), (260, 7620935219), (340, 5827773991), (442, 4482903070), (884, 2241451535), (1105, 1793161228), (2210, 896580614), (4420, 448290307), (5861, 338072540), (11722, 169036270), (23444, 84518135), (29305, 67614508), (58610, 33807254), (76193, 26005580), (76487, 25905620), (99637, 19886620), (117220, 16903627), (152386, 13002790), (152974, 12952810), (199274, 9943310), (304772, 6501395), (305948, 6476405), (380965, 5201116), (382435, 5181124), (398548, 4971655), (498185, 3977324), (761930, 2600558), (764870, 2590562), (994331, 1992740), (996370, 1988662), (1295281, 1529740), (1300279, 1523860)]

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