About the Number

12978210

12978209 ← → 12978211

2進数表記:110001100000100000100010

漢数字表記:千二百九十七万八千二百十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 23 1 × 2687 1

素因数の和:2727
約数の個数: 64
約数和(自身を含む): 37158912
約数和(自身を除く): 24180702

約数列:
[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 210, 230, 322, 345, 483, 690, 805, 966, 1610, 2415, 2687, 4830, 5374, 8061, 13435, 16122, 18809, 26870, 37618, 40305, 56427, 61801, 80610, 94045, 112854, 123602, 185403, 188090, 282135, 309005, 370806, 432607, 564270, 618010, 865214, 927015, 1297821, 1854030, 2163035, 2595642, 4326070, 6489105, 12978210]

約数ペア:
[(1, 12978210), (2, 6489105), (3, 4326070), (5, 2595642), (6, 2163035), (7, 1854030), (10, 1297821), (14, 927015), (15, 865214), (21, 618010), (23, 564270), (30, 432607), (35, 370806), (42, 309005), (46, 282135), (69, 188090), (70, 185403), (105, 123602), (115, 112854), (138, 94045), (161, 80610), (210, 61801), (230, 56427), (322, 40305), (345, 37618), (483, 26870), (690, 18809), (805, 16122), (966, 13435), (1610, 8061), (2415, 5374), (2687, 4830)]

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