About the Number

121397680

121397679 ← → 121397681

2進数表記:111001111000110000110110000

漢数字表記:一億二千百三十九万七千六百八十

素因数分解:

2 4 × 5 1 × 17 1 × 23 1 × 3881 1

素因数の和:3934
約数の個数: 80
約数和(自身を含む): 311926464
約数和(自身を除く): 190528784

約数列:
[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 460, 680, 782, 920, 1360, 1564, 1840, 1955, 3128, 3881, 3910, 6256, 7762, 7820, 15524, 15640, 19405, 31048, 31280, 38810, 62096, 65977, 77620, 89263, 131954, 155240, 178526, 263908, 310480, 329885, 357052, 446315, 527816, 659770, 714104, 892630, 1055632, 1319540, 1428208, 1517471, 1785260, 2639080, 3034942, 3570520, 5278160, 6069884, 7141040, 7587355, 12139768, 15174710, 24279536, 30349420, 60698840, 121397680]

約数ペア:
[(1, 121397680), (2, 60698840), (4, 30349420), (5, 24279536), (8, 15174710), (10, 12139768), (16, 7587355), (17, 7141040), (20, 6069884), (23, 5278160), (34, 3570520), (40, 3034942), (46, 2639080), (68, 1785260), (80, 1517471), (85, 1428208), (92, 1319540), (115, 1055632), (136, 892630), (170, 714104), (184, 659770), (230, 527816), (272, 446315), (340, 357052), (368, 329885), (391, 310480), (460, 263908), (680, 178526), (782, 155240), (920, 131954), (1360, 89263), (1564, 77620), (1840, 65977), (1955, 62096), (3128, 38810), (3881, 31280), (3910, 31048), (6256, 19405), (7762, 15640), (7820, 15524)]

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