About the Number

2018987950

2018987949 ← → 2018987951

2進数表記:1111000010101110100111110101110

漢数字表記:二十億千八百九十八万七千九百五十

素因数分解:

2 1 × 5 2 × 7 1 × 71 1 × 113 1 × 719 1

素因数の和:922
約数の個数: 96
約数和(自身を含む): 4396861440
約数和(自身を除く): 2377873490

約数列:
[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 113, 142, 175, 226, 350, 355, 497, 565, 710, 719, 791, 994, 1130, 1438, 1582, 1775, 2485, 2825, 3550, 3595, 3955, 4970, 5033, 5650, 7190, 7910, 8023, 10066, 12425, 16046, 17975, 19775, 24850, 25165, 35950, 39550, 40115, 50330, 51049, 56161, 80230, 81247, 102098, 112322, 125825, 162494, 200575, 251650, 255245, 280805, 357343, 401150, 406235, 510490, 561610, 568729, 714686, 812470, 1137458, 1276225, 1404025, 1786715, 2031175, 2552450, 2808050, 2843645, 3573430, 4062350, 5687290, 5768537, 8933575, 11537074, 14218225, 17867150, 28436450, 28842685, 40379759, 57685370, 80759518, 144213425, 201898795, 288426850, 403797590, 1009493975, 2018987950]

約数ペア:
[(1, 2018987950), (2, 1009493975), (5, 403797590), (7, 288426850), (10, 201898795), (14, 144213425), (25, 80759518), (35, 57685370), (50, 40379759), (70, 28842685), (71, 28436450), (113, 17867150), (142, 14218225), (175, 11537074), (226, 8933575), (350, 5768537), (355, 5687290), (497, 4062350), (565, 3573430), (710, 2843645), (719, 2808050), (791, 2552450), (994, 2031175), (1130, 1786715), (1438, 1404025), (1582, 1276225), (1775, 1137458), (2485, 812470), (2825, 714686), (3550, 568729), (3595, 561610), (3955, 510490), (4970, 406235), (5033, 401150), (5650, 357343), (7190, 280805), (7910, 255245), (8023, 251650), (10066, 200575), (12425, 162494), (16046, 125825), (17975, 112322), (19775, 102098), (24850, 81247), (25165, 80230), (35950, 56161), (39550, 51049), (40115, 50330)]

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