About the Number

217688380

217688379 ← → 217688381

2進数表記:1100111110011010100100111100

漢数字表記:二億千七百六十八万八千三百八十

素因数分解:

2 2 × 5 1 × 7 3 × 13 1 × 2441 1

素因数の和:2484
約数の個数: 96
約数和(自身を含む): 574358400
約数和(自身を除く): 356670020

約数列:
[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 343, 364, 455, 490, 637, 686, 910, 980, 1274, 1372, 1715, 1820, 2441, 2548, 3185, 3430, 4459, 4882, 6370, 6860, 8918, 9764, 12205, 12740, 17087, 17836, 22295, 24410, 31733, 34174, 44590, 48820, 63466, 68348, 85435, 89180, 119609, 126932, 158665, 170870, 222131, 239218, 317330, 341740, 444262, 478436, 598045, 634660, 837263, 888524, 1110655, 1196090, 1554917, 1674526, 2221310, 2392180, 3109834, 3349052, 4186315, 4442620, 6219668, 7774585, 8372630, 10884419, 15549170, 16745260, 21768838, 31098340, 43537676, 54422095, 108844190, 217688380]

約数ペア:
[(1, 217688380), (2, 108844190), (4, 54422095), (5, 43537676), (7, 31098340), (10, 21768838), (13, 16745260), (14, 15549170), (20, 10884419), (26, 8372630), (28, 7774585), (35, 6219668), (49, 4442620), (52, 4186315), (65, 3349052), (70, 3109834), (91, 2392180), (98, 2221310), (130, 1674526), (140, 1554917), (182, 1196090), (196, 1110655), (245, 888524), (260, 837263), (343, 634660), (364, 598045), (455, 478436), (490, 444262), (637, 341740), (686, 317330), (910, 239218), (980, 222131), (1274, 170870), (1372, 158665), (1715, 126932), (1820, 119609), (2441, 89180), (2548, 85435), (3185, 68348), (3430, 63466), (4459, 48820), (4882, 44590), (6370, 34174), (6860, 31733), (8918, 24410), (9764, 22295), (12205, 17836), (12740, 17087)]

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