310889020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 767370240

約数和(自身を除く): 456481220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 47, 52, 65, 76, 94, 95, 103, 130, 169, 188, 190, 206, 235, 247, 260, 338, 380, 412, 470, 494, 515, 611, 676, 845, 893, 940, 988, 1030, 1222, 1235, 1339, 1690, 1786, 1957, 2060, 2444, 2470, 2678, 3055, 3211, 3380, 3572, 3914, 4465, 4841, 4940, 5356, 6110, 6422, 6695, 7828, 7943, 8930, 9682, 9785, 11609, 12220, 12844, 13390, 15886, 16055, 17407, 17860, 19364, 19570, 23218, 24205, 25441, 26780, 31772, 32110, 34814, 39140, 39715, 46436, 48410, 50882, 58045, 62933, 64220, 69628, 79430, 87035, 91979, 96820, 101764, 116090, 125866, 127205, 150917, 158860, 174070, 183958, 232180, 251732, 254410, 301834, 314665, 330733, 348140, 367916, 459895, 508820, 603668, 629330, 661466, 754585, 818129, 919790, 1195727, 1258660, 1322932, 1509170, 1636258, 1653665, 1839580, 2391454, 3018340, 3272516, 3307330, 4090645, 4782908, 5978635, 6614660, 8181290, 11957270, 15544451, 16362580, 23914540, 31088902, 62177804, 77722255, 155444510, 310889020]

約数ペア:

[(1, 310889020), (2, 155444510), (4, 77722255), (5, 62177804), (10, 31088902), (13, 23914540), (19, 16362580), (20, 15544451), (26, 11957270), (38, 8181290), (47, 6614660), (52, 5978635), (65, 4782908), (76, 4090645), (94, 3307330), (95, 3272516), (103, 3018340), (130, 2391454), (169, 1839580), (188, 1653665), (190, 1636258), (206, 1509170), (235, 1322932), (247, 1258660), (260, 1195727), (338, 919790), (380, 818129), (412, 754585), (470, 661466), (494, 629330), (515, 603668), (611, 508820), (676, 459895), (845, 367916), (893, 348140), (940, 330733), (988, 314665), (1030, 301834), (1222, 254410), (1235, 251732), (1339, 232180), (1690, 183958), (1786, 174070), (1957, 158860), (2060, 150917), (2444, 127205), (2470, 125866), (2678, 116090), (3055, 101764), (3211, 96820), (3380, 91979), (3572, 87035), (3914, 79430), (4465, 69628), (4841, 64220), (4940, 62933), (5356, 58045), (6110, 50882), (6422, 48410), (6695, 46436), (7828, 39715), (7943, 39140), (8930, 34814), (9682, 32110), (9785, 31772), (11609, 26780), (12220, 25441), (12844, 24205), (13390, 23218), (15886, 19570), (16055, 19364), (17407, 17860)]