18431600

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 120

約数和(自身を含む): 49818240

約数和(自身を除く): 31386640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 59, 71, 80, 88, 100, 110, 118, 142, 176, 200, 220, 236, 275, 284, 295, 355, 400, 440, 472, 550, 568, 590, 649, 710, 781, 880, 944, 1100, 1136, 1180, 1298, 1420, 1475, 1562, 1775, 2200, 2360, 2596, 2840, 2950, 3124, 3245, 3550, 3905, 4189, 4400, 4720, 5192, 5680, 5900, 6248, 6490, 7100, 7810, 8378, 10384, 11800, 12496, 12980, 14200, 15620, 16225, 16756, 19525, 20945, 23600, 25960, 28400, 31240, 32450, 33512, 39050, 41890, 46079, 51920, 62480, 64900, 67024, 78100, 83780, 92158, 104725, 129800, 156200, 167560, 184316, 209450, 230395, 259600, 312400, 335120, 368632, 418900, 460790, 737264, 837800, 921580, 1151975, 1675600, 1843160, 2303950, 3686320, 4607900, 9215800, 18431600]

約数ペア:

[(1, 18431600), (2, 9215800), (4, 4607900), (5, 3686320), (8, 2303950), (10, 1843160), (11, 1675600), (16, 1151975), (20, 921580), (22, 837800), (25, 737264), (40, 460790), (44, 418900), (50, 368632), (55, 335120), (59, 312400), (71, 259600), (80, 230395), (88, 209450), (100, 184316), (110, 167560), (118, 156200), (142, 129800), (176, 104725), (200, 92158), (220, 83780), (236, 78100), (275, 67024), (284, 64900), (295, 62480), (355, 51920), (400, 46079), (440, 41890), (472, 39050), (550, 33512), (568, 32450), (590, 31240), (649, 28400), (710, 25960), (781, 23600), (880, 20945), (944, 19525), (1100, 16756), (1136, 16225), (1180, 15620), (1298, 14200), (1420, 12980), (1475, 12496), (1562, 11800), (1775, 10384), (2200, 8378), (2360, 7810), (2596, 7100), (2840, 6490), (2950, 6248), (3124, 5900), (3245, 5680), (3550, 5192), (3905, 4720), (4189, 4400)]