18774990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1783}}^1$

素因数の和:1815

約数の個数: 80

約数和(自身を含む): 54397728

約数和(自身を除く): 35622738

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 1783, 2106, 3510, 3566, 5265, 5349, 8915, 10530, 10698, 16047, 17830, 23179, 26745, 32094, 46358, 48141, 53490, 69537, 80235, 96282, 115895, 139074, 144423, 160470, 208611, 231790, 240705, 288846, 347685, 417222, 481410, 625833, 695370, 722115, 1043055, 1251666, 1444230, 1877499, 2086110, 3129165, 3754998, 6258330, 9387495, 18774990]

約数ペア:

[(1, 18774990), (2, 9387495), (3, 6258330), (5, 3754998), (6, 3129165), (9, 2086110), (10, 1877499), (13, 1444230), (15, 1251666), (18, 1043055), (26, 722115), (27, 695370), (30, 625833), (39, 481410), (45, 417222), (54, 347685), (65, 288846), (78, 240705), (81, 231790), (90, 208611), (117, 160470), (130, 144423), (135, 139074), (162, 115895), (195, 96282), (234, 80235), (270, 69537), (351, 53490), (390, 48141), (405, 46358), (585, 32094), (702, 26745), (810, 23179), (1053, 17830), (1170, 16047), (1755, 10698), (1783, 10530), (2106, 8915), (3510, 5349), (3566, 5265)]