About the Number

216321280

216321279 ← → 216321281

2進数表記:1100111001001100110100000000

漢数字表記:二億千六百三十二万千二百八十

素因数分解:

2 8 × 5 1 × 7 2 × 3449 1

素因数の和:3484
約数の個数: 108
約数和(自身を含む): 602928900
約数和(自身を除く): 386607620

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 3136, 3449, 3920, 4480, 6272, 6898, 7840, 8960, 12544, 13796, 15680, 17245, 24143, 27592, 31360, 34490, 48286, 55184, 62720, 68980, 96572, 110368, 120715, 137960, 169001, 193144, 220736, 241430, 275920, 338002, 386288, 441472, 482860, 551840, 676004, 772576, 845005, 882944, 965720, 1103680, 1352008, 1545152, 1690010, 1931440, 2207360, 2704016, 3090304, 3380020, 3862880, 4414720, 5408032, 6180608, 6760040, 7725760, 10816064, 13520080, 15451520, 21632128, 27040160, 30903040, 43264256, 54080320, 108160640, 216321280]

約数ペア:
[(1, 216321280), (2, 108160640), (4, 54080320), (5, 43264256), (7, 30903040), (8, 27040160), (10, 21632128), (14, 15451520), (16, 13520080), (20, 10816064), (28, 7725760), (32, 6760040), (35, 6180608), (40, 5408032), (49, 4414720), (56, 3862880), (64, 3380020), (70, 3090304), (80, 2704016), (98, 2207360), (112, 1931440), (128, 1690010), (140, 1545152), (160, 1352008), (196, 1103680), (224, 965720), (245, 882944), (256, 845005), (280, 772576), (320, 676004), (392, 551840), (448, 482860), (490, 441472), (560, 386288), (640, 338002), (784, 275920), (896, 241430), (980, 220736), (1120, 193144), (1280, 169001), (1568, 137960), (1792, 120715), (1960, 110368), (2240, 96572), (3136, 68980), (3449, 62720), (3920, 55184), (4480, 48286), (6272, 34490), (6898, 31360), (7840, 27592), (8960, 24143), (12544, 17245), (13796, 15680)]

このpageの処理時間: 0.010996818542480469 seconds