1221464020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:318

約数の個数: 192

約数和(自身を含む): 3228825600

約数和(自身を除く): 2007361580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 43, 59, 70, 76, 86, 95, 118, 133, 140, 172, 181, 190, 215, 236, 266, 295, 301, 362, 380, 413, 430, 532, 590, 602, 665, 724, 817, 826, 860, 905, 1121, 1180, 1204, 1267, 1330, 1505, 1634, 1652, 1810, 2065, 2242, 2534, 2537, 2660, 3010, 3268, 3439, 3620, 4085, 4130, 4484, 5068, 5074, 5605, 5719, 6020, 6335, 6878, 7783, 7847, 8170, 8260, 10148, 10679, 11210, 11438, 12670, 12685, 13756, 15566, 15694, 16340, 17195, 17759, 21358, 22420, 22876, 24073, 25340, 25370, 28595, 31132, 31388, 34390, 35518, 38915, 39235, 42716, 48146, 48203, 50740, 53395, 54481, 57190, 68780, 71036, 74753, 77830, 78470, 88795, 96292, 96406, 106790, 108962, 114380, 120365, 147877, 149506, 155660, 156940, 177590, 192812, 202901, 213580, 217924, 240730, 241015, 272405, 295754, 299012, 337421, 355180, 373765, 405802, 459197, 481460, 482030, 544810, 591508, 674842, 739385, 747530, 811604, 918394, 964060, 1014505, 1035139, 1089620, 1349684, 1420307, 1478770, 1495060, 1687105, 1836788, 2029010, 2070278, 2295985, 2840614, 2957540, 3214379, 3374210, 4058020, 4140556, 4591970, 5175695, 5681228, 6428758, 6748420, 7101535, 8724743, 9183940, 10351390, 12857516, 14203070, 16071895, 17449486, 20702780, 28406140, 32143790, 34898972, 43623715, 61073201, 64287580, 87247430, 122146402, 174494860, 244292804, 305366005, 610732010, 1221464020]

約数ペア:

[(1, 1221464020), (2, 610732010), (4, 305366005), (5, 244292804), (7, 174494860), (10, 122146402), (14, 87247430), (19, 64287580), (20, 61073201), (28, 43623715), (35, 34898972), (38, 32143790), (43, 28406140), (59, 20702780), (70, 17449486), (76, 16071895), (86, 14203070), (95, 12857516), (118, 10351390), (133, 9183940), (140, 8724743), (172, 7101535), (181, 6748420), (190, 6428758), (215, 5681228), (236, 5175695), (266, 4591970), (295, 4140556), (301, 4058020), (362, 3374210), (380, 3214379), (413, 2957540), (430, 2840614), (532, 2295985), (590, 2070278), (602, 2029010), (665, 1836788), (724, 1687105), (817, 1495060), (826, 1478770), (860, 1420307), (905, 1349684), (1121, 1089620), (1180, 1035139), (1204, 1014505), (1267, 964060), (1330, 918394), (1505, 811604), (1634, 747530), (1652, 739385), (1810, 674842), (2065, 591508), (2242, 544810), (2534, 482030), (2537, 481460), (2660, 459197), (3010, 405802), (3268, 373765), (3439, 355180), (3620, 337421), (4085, 299012), (4130, 295754), (4484, 272405), (5068, 241015), (5074, 240730), (5605, 217924), (5719, 213580), (6020, 202901), (6335, 192812), (6878, 177590), (7783, 156940), (7847, 155660), (8170, 149506), (8260, 147877), (10148, 120365), (10679, 114380), (11210, 108962), (11438, 106790), (12670, 96406), (12685, 96292), (13756, 88795), (15566, 78470), (15694, 77830), (16340, 74753), (17195, 71036), (17759, 68780), (21358, 57190), (22420, 54481), (22876, 53395), (24073, 50740), (25340, 48203), (25370, 48146), (28595, 42716), (31132, 39235), (31388, 38915), (34390, 35518)]