30725760

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1231}}^1$

素因数の和:1266

約数の個数: 128

約数和(自身を含む): 105557760

約数和(自身を除く): 74832000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 780, 832, 960, 1040, 1231, 1248, 1560, 1664, 1920, 2080, 2462, 2496, 3120, 3693, 4160, 4924, 4992, 6155, 6240, 7386, 8320, 9848, 12310, 12480, 14772, 16003, 18465, 19696, 24620, 24960, 29544, 32006, 36930, 39392, 48009, 49240, 59088, 64012, 73860, 78784, 80015, 96018, 98480, 118176, 128024, 147720, 157568, 160030, 192036, 196960, 236352, 240045, 256048, 295440, 320060, 384072, 393920, 472704, 480090, 512096, 590880, 640120, 768144, 787840, 960180, 1024192, 1181760, 1280240, 1536288, 1920360, 2048384, 2363520, 2560480, 3072576, 3840720, 5120960, 6145152, 7681440, 10241920, 15362880, 30725760]

約数ペア:

[(1, 30725760), (2, 15362880), (3, 10241920), (4, 7681440), (5, 6145152), (6, 5120960), (8, 3840720), (10, 3072576), (12, 2560480), (13, 2363520), (15, 2048384), (16, 1920360), (20, 1536288), (24, 1280240), (26, 1181760), (30, 1024192), (32, 960180), (39, 787840), (40, 768144), (48, 640120), (52, 590880), (60, 512096), (64, 480090), (65, 472704), (78, 393920), (80, 384072), (96, 320060), (104, 295440), (120, 256048), (128, 240045), (130, 236352), (156, 196960), (160, 192036), (192, 160030), (195, 157568), (208, 147720), (240, 128024), (260, 118176), (312, 98480), (320, 96018), (384, 80015), (390, 78784), (416, 73860), (480, 64012), (520, 59088), (624, 49240), (640, 48009), (780, 39392), (832, 36930), (960, 32006), (1040, 29544), (1231, 24960), (1248, 24620), (1560, 19696), (1664, 18465), (1920, 16003), (2080, 14772), (2462, 12480), (2496, 12310), (3120, 9848), (3693, 8320), (4160, 7386), (4924, 6240), (4992, 6155)]