20174579180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:916

約数の個数: 192

約数和(自身を含む): 51093504000

約数和(自身を除く): 30918924820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 59, 70, 79, 86, 118, 140, 158, 172, 215, 236, 295, 301, 316, 395, 413, 430, 553, 590, 602, 719, 790, 826, 860, 1106, 1180, 1204, 1438, 1505, 1580, 1652, 2065, 2212, 2537, 2765, 2876, 3010, 3397, 3595, 4130, 4661, 5033, 5074, 5530, 6020, 6794, 7190, 8260, 9322, 10066, 10148, 11060, 12685, 13588, 14380, 16985, 17759, 18644, 20132, 23305, 23779, 25165, 25370, 30917, 32627, 33970, 35518, 42421, 46610, 47558, 50330, 50740, 56801, 61834, 65254, 67940, 71036, 84842, 88795, 93220, 95116, 100660, 113602, 118895, 123668, 130508, 154585, 163135, 169684, 177590, 200423, 212105, 216419, 227204, 237790, 284005, 296947, 309170, 326270, 355180, 397607, 400846, 424210, 432838, 475580, 568010, 593894, 618340, 652540, 795214, 801692, 848420, 865676, 1002115, 1082095, 1136020, 1187788, 1402961, 1484735, 1590428, 1824103, 1988035, 2004230, 2164190, 2442443, 2805922, 2969470, 3351259, 3648206, 3976070, 4008460, 4328380, 4884886, 5611844, 5938940, 6702518, 7014805, 7296412, 7952140, 9120515, 9769772, 12212215, 12768721, 13405036, 14029610, 16756295, 17097101, 18241030, 23458813, 24424430, 25537442, 28059220, 33512590, 34194202, 36482060, 46917626, 48848860, 51074884, 63843605, 67025180, 68388404, 85485505, 93835252, 117294065, 127687210, 144104137, 170971010, 234588130, 255374420, 288208274, 341942020, 469176260, 576416548, 720520685, 1008728959, 1441041370, 2017457918, 2882082740, 4034915836, 5043644795, 10087289590, 20174579180]

約数ペア:

[(1, 20174579180), (2, 10087289590), (4, 5043644795), (5, 4034915836), (7, 2882082740), (10, 2017457918), (14, 1441041370), (20, 1008728959), (28, 720520685), (35, 576416548), (43, 469176260), (59, 341942020), (70, 288208274), (79, 255374420), (86, 234588130), (118, 170971010), (140, 144104137), (158, 127687210), (172, 117294065), (215, 93835252), (236, 85485505), (295, 68388404), (301, 67025180), (316, 63843605), (395, 51074884), (413, 48848860), (430, 46917626), (553, 36482060), (590, 34194202), (602, 33512590), (719, 28059220), (790, 25537442), (826, 24424430), (860, 23458813), (1106, 18241030), (1180, 17097101), (1204, 16756295), (1438, 14029610), (1505, 13405036), (1580, 12768721), (1652, 12212215), (2065, 9769772), (2212, 9120515), (2537, 7952140), (2765, 7296412), (2876, 7014805), (3010, 6702518), (3397, 5938940), (3595, 5611844), (4130, 4884886), (4661, 4328380), (5033, 4008460), (5074, 3976070), (5530, 3648206), (6020, 3351259), (6794, 2969470), (7190, 2805922), (8260, 2442443), (9322, 2164190), (10066, 2004230), (10148, 1988035), (11060, 1824103), (12685, 1590428), (13588, 1484735), (14380, 1402961), (16985, 1187788), (17759, 1136020), (18644, 1082095), (20132, 1002115), (23305, 865676), (23779, 848420), (25165, 801692), (25370, 795214), (30917, 652540), (32627, 618340), (33970, 593894), (35518, 568010), (42421, 475580), (46610, 432838), (47558, 424210), (50330, 400846), (50740, 397607), (56801, 355180), (61834, 326270), (65254, 309170), (67940, 296947), (71036, 284005), (84842, 237790), (88795, 227204), (93220, 216419), (95116, 212105), (100660, 200423), (113602, 177590), (118895, 169684), (123668, 163135), (130508, 154585)]