20301030

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:443

約数の個数: 80

約数和(自身を含む): 55512864

約数和(自身を除く): 35211834

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 71, 81, 90, 135, 142, 162, 213, 270, 353, 355, 405, 426, 639, 706, 710, 810, 1059, 1065, 1278, 1765, 1917, 2118, 2130, 3177, 3195, 3530, 3834, 5295, 5751, 6354, 6390, 9531, 9585, 10590, 11502, 15885, 19062, 19170, 25063, 28593, 28755, 31770, 47655, 50126, 57186, 57510, 75189, 95310, 125315, 142965, 150378, 225567, 250630, 285930, 375945, 451134, 676701, 751890, 1127835, 1353402, 2030103, 2255670, 3383505, 4060206, 6767010, 10150515, 20301030]

約数ペア:

[(1, 20301030), (2, 10150515), (3, 6767010), (5, 4060206), (6, 3383505), (9, 2255670), (10, 2030103), (15, 1353402), (18, 1127835), (27, 751890), (30, 676701), (45, 451134), (54, 375945), (71, 285930), (81, 250630), (90, 225567), (135, 150378), (142, 142965), (162, 125315), (213, 95310), (270, 75189), (353, 57510), (355, 57186), (405, 50126), (426, 47655), (639, 31770), (706, 28755), (710, 28593), (810, 25063), (1059, 19170), (1065, 19062), (1278, 15885), (1765, 11502), (1917, 10590), (2118, 9585), (2130, 9531), (3177, 6390), (3195, 6354), (3530, 5751), (3834, 5295)]