217840980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^2\times {\mathrm{149}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 713865600

約数和(自身を除く): 496024620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 59, 60, 70, 84, 105, 118, 140, 149, 177, 210, 236, 295, 298, 354, 413, 420, 447, 590, 596, 708, 745, 826, 885, 894, 1043, 1180, 1239, 1490, 1652, 1770, 1788, 2065, 2086, 2235, 2478, 2980, 3129, 3481, 3540, 4130, 4172, 4470, 4956, 5215, 6195, 6258, 6962, 8260, 8791, 8940, 10430, 10443, 12390, 12516, 13924, 15645, 17405, 17582, 20860, 20886, 24367, 24780, 26373, 31290, 34810, 35164, 41772, 43955, 48734, 52215, 52746, 61537, 62580, 69620, 73101, 87910, 97468, 104430, 105492, 121835, 123074, 131865, 146202, 175820, 184611, 208860, 243670, 246148, 263730, 292404, 307685, 365505, 369222, 487340, 518669, 527460, 615370, 731010, 738444, 923055, 1037338, 1230740, 1462020, 1556007, 1846110, 2074676, 2593345, 3112014, 3630683, 3692220, 5186690, 6224028, 7261366, 7780035, 10373380, 10892049, 14522732, 15560070, 18153415, 21784098, 31120140, 36306830, 43568196, 54460245, 72613660, 108920490, 217840980]

約数ペア:

[(1, 217840980), (2, 108920490), (3, 72613660), (4, 54460245), (5, 43568196), (6, 36306830), (7, 31120140), (10, 21784098), (12, 18153415), (14, 15560070), (15, 14522732), (20, 10892049), (21, 10373380), (28, 7780035), (30, 7261366), (35, 6224028), (42, 5186690), (59, 3692220), (60, 3630683), (70, 3112014), (84, 2593345), (105, 2074676), (118, 1846110), (140, 1556007), (149, 1462020), (177, 1230740), (210, 1037338), (236, 923055), (295, 738444), (298, 731010), (354, 615370), (413, 527460), (420, 518669), (447, 487340), (590, 369222), (596, 365505), (708, 307685), (745, 292404), (826, 263730), (885, 246148), (894, 243670), (1043, 208860), (1180, 184611), (1239, 175820), (1490, 146202), (1652, 131865), (1770, 123074), (1788, 121835), (2065, 105492), (2086, 104430), (2235, 97468), (2478, 87910), (2980, 73101), (3129, 69620), (3481, 62580), (3540, 61537), (4130, 52746), (4172, 52215), (4470, 48734), (4956, 43955), (5215, 41772), (6195, 35164), (6258, 34810), (6962, 31290), (8260, 26373), (8791, 24780), (8940, 24367), (10430, 20886), (10443, 20860), (12390, 17582), (12516, 17405), (13924, 15645)]