About the Number

380286920

380286919 ← → 380286921

2進数表記:10110101010101011011111001000

漢数字表記:三億八千二十八万六千九百二十

素因数分解:

2 3 × 5 1 × 13 1 × 31 2 × 761 1

素因数の和:847
約数の個数: 96
約数和(自身を含む): 953399160
約数和(自身を除く): 573112240

約数列:
[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 761, 806, 961, 1240, 1522, 1612, 1922, 2015, 3044, 3224, 3805, 3844, 4030, 4805, 6088, 7610, 7688, 8060, 9610, 9893, 12493, 15220, 16120, 19220, 19786, 23591, 24986, 30440, 38440, 39572, 47182, 49465, 49972, 62465, 79144, 94364, 98930, 99944, 117955, 124930, 188728, 197860, 235910, 249860, 306683, 395720, 471820, 499720, 613366, 731321, 943640, 1226732, 1462642, 1533415, 2453464, 2925284, 3066830, 3656605, 5850568, 6133660, 7313210, 9507173, 12267320, 14626420, 19014346, 29252840, 38028692, 47535865, 76057384, 95071730, 190143460, 380286920]

約数ペア:
[(1, 380286920), (2, 190143460), (4, 95071730), (5, 76057384), (8, 47535865), (10, 38028692), (13, 29252840), (20, 19014346), (26, 14626420), (31, 12267320), (40, 9507173), (52, 7313210), (62, 6133660), (65, 5850568), (104, 3656605), (124, 3066830), (130, 2925284), (155, 2453464), (248, 1533415), (260, 1462642), (310, 1226732), (403, 943640), (520, 731321), (620, 613366), (761, 499720), (806, 471820), (961, 395720), (1240, 306683), (1522, 249860), (1612, 235910), (1922, 197860), (2015, 188728), (3044, 124930), (3224, 117955), (3805, 99944), (3844, 98930), (4030, 94364), (4805, 79144), (6088, 62465), (7610, 49972), (7688, 49465), (8060, 47182), (9610, 39572), (9893, 38440), (12493, 30440), (15220, 24986), (16120, 23591), (19220, 19786)]

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