20174771240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{194963}}^1$

素因数の和:195186

約数の個数: 64

約数和(自身を含む): 49130928000

約数和(自身を除く): 28956156760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 199, 260, 398, 520, 796, 995, 1592, 1990, 2587, 3980, 5174, 7960, 10348, 12935, 20696, 25870, 51740, 103480, 194963, 389926, 779852, 974815, 1559704, 1949630, 2534519, 3899260, 5069038, 7798520, 10138076, 12672595, 20276152, 25345190, 38797637, 50690380, 77595274, 101380760, 155190548, 193988185, 310381096, 387976370, 504369281, 775952740, 1008738562, 1551905480, 2017477124, 2521846405, 4034954248, 5043692810, 10087385620, 20174771240]

約数ペア:

[(1, 20174771240), (2, 10087385620), (4, 5043692810), (5, 4034954248), (8, 2521846405), (10, 2017477124), (13, 1551905480), (20, 1008738562), (26, 775952740), (40, 504369281), (52, 387976370), (65, 310381096), (104, 193988185), (130, 155190548), (199, 101380760), (260, 77595274), (398, 50690380), (520, 38797637), (796, 25345190), (995, 20276152), (1592, 12672595), (1990, 10138076), (2587, 7798520), (3980, 5069038), (5174, 3899260), (7960, 2534519), (10348, 1949630), (12935, 1559704), (20696, 974815), (25870, 779852), (51740, 389926), (103480, 194963)]