20139885540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{8689}}^1$

素因数の和:8946

約数の個数: 144

約数和(自身を含む): 62250988800

約数和(自身を除く): 42111103260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 163, 180, 237, 316, 326, 395, 474, 489, 652, 711, 790, 815, 948, 978, 1185, 1422, 1467, 1580, 1630, 1956, 2370, 2445, 2844, 2934, 3260, 3555, 4740, 4890, 5868, 7110, 7335, 8689, 9780, 12877, 14220, 14670, 17378, 25754, 26067, 29340, 34756, 38631, 43445, 51508, 52134, 64385, 77262, 78201, 86890, 104268, 115893, 128770, 130335, 154524, 156402, 173780, 193155, 231786, 257540, 260670, 312804, 386310, 391005, 463572, 521340, 579465, 686431, 772620, 782010, 1158930, 1372862, 1416307, 1564020, 2059293, 2317860, 2745724, 2832614, 3432155, 4118586, 4248921, 5665228, 6177879, 6864310, 7081535, 8237172, 8497842, 10296465, 12355758, 12746763, 13728620, 14163070, 16995684, 20592930, 21244605, 24711516, 25493526, 28326140, 30889395, 41185860, 42489210, 50987052, 61778790, 63733815, 84978420, 111888253, 123557580, 127467630, 223776506, 254935260, 335664759, 447553012, 559441265, 671329518, 1006994277, 1118882530, 1342659036, 1678323795, 2013988554, 2237765060, 3356647590, 4027977108, 5034971385, 6713295180, 10069942770, 20139885540]

約数ペア:

[(1, 20139885540), (2, 10069942770), (3, 6713295180), (4, 5034971385), (5, 4027977108), (6, 3356647590), (9, 2237765060), (10, 2013988554), (12, 1678323795), (15, 1342659036), (18, 1118882530), (20, 1006994277), (30, 671329518), (36, 559441265), (45, 447553012), (60, 335664759), (79, 254935260), (90, 223776506), (158, 127467630), (163, 123557580), (180, 111888253), (237, 84978420), (316, 63733815), (326, 61778790), (395, 50987052), (474, 42489210), (489, 41185860), (652, 30889395), (711, 28326140), (790, 25493526), (815, 24711516), (948, 21244605), (978, 20592930), (1185, 16995684), (1422, 14163070), (1467, 13728620), (1580, 12746763), (1630, 12355758), (1956, 10296465), (2370, 8497842), (2445, 8237172), (2844, 7081535), (2934, 6864310), (3260, 6177879), (3555, 5665228), (4740, 4248921), (4890, 4118586), (5868, 3432155), (7110, 2832614), (7335, 2745724), (8689, 2317860), (9780, 2059293), (12877, 1564020), (14220, 1416307), (14670, 1372862), (17378, 1158930), (25754, 782010), (26067, 772620), (29340, 686431), (34756, 579465), (38631, 521340), (43445, 463572), (51508, 391005), (52134, 386310), (64385, 312804), (77262, 260670), (78201, 257540), (86890, 231786), (104268, 193155), (115893, 173780), (128770, 156402), (130335, 154524)]