About the Number

10881990

10881989 ← → 10881991

2進数表記:101001100000101111000110

漢数字表記:千八十八万千九百九十

素因数分解:

2 1 × 3 2 × 5 1 × 7 1 × 23 1 × 751 1

素因数の和:794
約数の個数: 96
約数和(自身を含む): 33785856
約数和(自身を除く): 22903866

約数列:
[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 35, 42, 45, 46, 63, 69, 70, 90, 105, 115, 126, 138, 161, 207, 210, 230, 315, 322, 345, 414, 483, 630, 690, 751, 805, 966, 1035, 1449, 1502, 1610, 2070, 2253, 2415, 2898, 3755, 4506, 4830, 5257, 6759, 7245, 7510, 10514, 11265, 13518, 14490, 15771, 17273, 22530, 26285, 31542, 33795, 34546, 47313, 51819, 52570, 67590, 78855, 86365, 94626, 103638, 120911, 155457, 157710, 172730, 236565, 241822, 259095, 310914, 362733, 473130, 518190, 604555, 725466, 777285, 1088199, 1209110, 1554570, 1813665, 2176398, 3627330, 5440995, 10881990]

約数ペア:
[(1, 10881990), (2, 5440995), (3, 3627330), (5, 2176398), (6, 1813665), (7, 1554570), (9, 1209110), (10, 1088199), (14, 777285), (15, 725466), (18, 604555), (21, 518190), (23, 473130), (30, 362733), (35, 310914), (42, 259095), (45, 241822), (46, 236565), (63, 172730), (69, 157710), (70, 155457), (90, 120911), (105, 103638), (115, 94626), (126, 86365), (138, 78855), (161, 67590), (207, 52570), (210, 51819), (230, 47313), (315, 34546), (322, 33795), (345, 31542), (414, 26285), (483, 22530), (630, 17273), (690, 15771), (751, 14490), (805, 13518), (966, 11265), (1035, 10514), (1449, 7510), (1502, 7245), (1610, 6759), (2070, 5257), (2253, 4830), (2415, 4506), (2898, 3755)]

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