About the Number

81428970

81428969 ← → 81428971

2進数表記:100110110101000000111101010

漢数字表記:八千百四十二万八千九百七十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 23 2 × 733 1

素因数の和:796
約数の個数: 96
約数和(自身を含む): 233799552
約数和(自身を除く): 152370582

約数列:
[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 210, 230, 322, 345, 483, 529, 690, 733, 805, 966, 1058, 1466, 1587, 1610, 2199, 2415, 2645, 3174, 3665, 3703, 4398, 4830, 5131, 5290, 7330, 7406, 7935, 10262, 10995, 11109, 15393, 15870, 16859, 18515, 21990, 22218, 25655, 30786, 33718, 37030, 50577, 51310, 55545, 76965, 84295, 101154, 111090, 118013, 153930, 168590, 236026, 252885, 354039, 387757, 505770, 590065, 708078, 775514, 1163271, 1180130, 1770195, 1938785, 2326542, 2714299, 3540390, 3877570, 5428598, 5816355, 8142897, 11632710, 13571495, 16285794, 27142990, 40714485, 81428970]

約数ペア:
[(1, 81428970), (2, 40714485), (3, 27142990), (5, 16285794), (6, 13571495), (7, 11632710), (10, 8142897), (14, 5816355), (15, 5428598), (21, 3877570), (23, 3540390), (30, 2714299), (35, 2326542), (42, 1938785), (46, 1770195), (69, 1180130), (70, 1163271), (105, 775514), (115, 708078), (138, 590065), (161, 505770), (210, 387757), (230, 354039), (322, 252885), (345, 236026), (483, 168590), (529, 153930), (690, 118013), (733, 111090), (805, 101154), (966, 84295), (1058, 76965), (1466, 55545), (1587, 51310), (1610, 50577), (2199, 37030), (2415, 33718), (2645, 30786), (3174, 25655), (3665, 22218), (3703, 21990), (4398, 18515), (4830, 16859), (5131, 15870), (5290, 15393), (7330, 11109), (7406, 10995), (7935, 10262)]

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