About the Number

201728100

201728099 ← → 201728101

2進数表記:1100000001100010000001100100

漢数字表記:二億百七十二万八千百

素因数分解:

2 2 × 3 1 × 5 2 × 7 2 × 13723 1

素因数の和:13754
約数の個数: 108
約数和(自身を含む): 679008624
約数和(自身を除く): 477280524

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 140, 147, 150, 175, 196, 210, 245, 294, 300, 350, 420, 490, 525, 588, 700, 735, 980, 1050, 1225, 1470, 2100, 2450, 2940, 3675, 4900, 7350, 13723, 14700, 27446, 41169, 54892, 68615, 82338, 96061, 137230, 164676, 192122, 205845, 274460, 288183, 343075, 384244, 411690, 480305, 576366, 672427, 686150, 823380, 960610, 1029225, 1152732, 1344854, 1372300, 1440915, 1921220, 2017281, 2058450, 2401525, 2689708, 2881830, 3362135, 4034562, 4116900, 4803050, 5763660, 6724270, 7204575, 8069124, 9606100, 10086405, 13448540, 14409150, 16810675, 20172810, 28818300, 33621350, 40345620, 50432025, 67242700, 100864050, 201728100]

約数ペア:
[(1, 201728100), (2, 100864050), (3, 67242700), (4, 50432025), (5, 40345620), (6, 33621350), (7, 28818300), (10, 20172810), (12, 16810675), (14, 14409150), (15, 13448540), (20, 10086405), (21, 9606100), (25, 8069124), (28, 7204575), (30, 6724270), (35, 5763660), (42, 4803050), (49, 4116900), (50, 4034562), (60, 3362135), (70, 2881830), (75, 2689708), (84, 2401525), (98, 2058450), (100, 2017281), (105, 1921220), (140, 1440915), (147, 1372300), (150, 1344854), (175, 1152732), (196, 1029225), (210, 960610), (245, 823380), (294, 686150), (300, 672427), (350, 576366), (420, 480305), (490, 411690), (525, 384244), (588, 343075), (700, 288183), (735, 274460), (980, 205845), (1050, 192122), (1225, 164676), (1470, 137230), (2100, 96061), (2450, 82338), (2940, 68615), (3675, 54892), (4900, 41169), (7350, 27446), (13723, 14700)]

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