About the Number

801280980

801280979 ← → 801280981

2進数表記:101111110000101001001111010100

漢数字表記:八億百二十八万九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 397 1 × 11213 1

素因数の和:11625
約数の個数: 72
約数和(自身を含む): 2436891912
約数和(自身を除く): 1635610932

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397, 794, 1191, 1588, 1985, 2382, 3573, 3970, 4764, 5955, 7146, 7940, 11213, 11910, 14292, 17865, 22426, 23820, 33639, 35730, 44852, 56065, 67278, 71460, 100917, 112130, 134556, 168195, 201834, 224260, 336390, 403668, 504585, 672780, 1009170, 2018340, 4451561, 8903122, 13354683, 17806244, 22257805, 26709366, 40064049, 44515610, 53418732, 66773415, 80128098, 89031220, 133546830, 160256196, 200320245, 267093660, 400640490, 801280980]

約数ペア:
[(1, 801280980), (2, 400640490), (3, 267093660), (4, 200320245), (5, 160256196), (6, 133546830), (9, 89031220), (10, 80128098), (12, 66773415), (15, 53418732), (18, 44515610), (20, 40064049), (30, 26709366), (36, 22257805), (45, 17806244), (60, 13354683), (90, 8903122), (180, 4451561), (397, 2018340), (794, 1009170), (1191, 672780), (1588, 504585), (1985, 403668), (2382, 336390), (3573, 224260), (3970, 201834), (4764, 168195), (5955, 134556), (7146, 112130), (7940, 100917), (11213, 71460), (11910, 67278), (14292, 56065), (17865, 44852), (22426, 35730), (23820, 33639)]

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