About the Number

210495220

210495219 ← → 210495221

2進数表記:1100100010111110011011110100

漢数字表記:二億千四十九万五千二百二十

素因数分解:

2 2 × 5 1 × 13 1 × 37 1 × 21881 1

素因数の和:21940
約数の個数: 48
約数和(自身を含む): 488931408
約数和(自身を除く): 278436188

約数列:
[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 9620, 21881, 43762, 87524, 109405, 218810, 284453, 437620, 568906, 809597, 1137812, 1422265, 1619194, 2844530, 3238388, 4047985, 5689060, 8095970, 10524761, 16191940, 21049522, 42099044, 52623805, 105247610, 210495220]

約数ペア:
[(1, 210495220), (2, 105247610), (4, 52623805), (5, 42099044), (10, 21049522), (13, 16191940), (20, 10524761), (26, 8095970), (37, 5689060), (52, 4047985), (65, 3238388), (74, 2844530), (130, 1619194), (148, 1422265), (185, 1137812), (260, 809597), (370, 568906), (481, 437620), (740, 284453), (962, 218810), (1924, 109405), (2405, 87524), (4810, 43762), (9620, 21881)]

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