19398870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:470

約数の個数: 96

約数和(自身を含む): 55261440

約数和(自身を除く): 35862570

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 31, 34, 45, 51, 62, 85, 90, 93, 102, 153, 155, 170, 186, 255, 279, 306, 310, 409, 465, 510, 527, 558, 765, 818, 930, 1054, 1227, 1395, 1530, 1581, 2045, 2454, 2635, 2790, 3162, 3681, 4090, 4743, 5270, 6135, 6953, 7362, 7905, 9486, 12270, 12679, 13906, 15810, 18405, 20859, 23715, 25358, 34765, 36810, 38037, 41718, 47430, 62577, 63395, 69530, 76074, 104295, 114111, 125154, 126790, 190185, 208590, 215543, 228222, 312885, 380370, 431086, 570555, 625770, 646629, 1077715, 1141110, 1293258, 1939887, 2155430, 3233145, 3879774, 6466290, 9699435, 19398870]

約数ペア:

[(1, 19398870), (2, 9699435), (3, 6466290), (5, 3879774), (6, 3233145), (9, 2155430), (10, 1939887), (15, 1293258), (17, 1141110), (18, 1077715), (30, 646629), (31, 625770), (34, 570555), (45, 431086), (51, 380370), (62, 312885), (85, 228222), (90, 215543), (93, 208590), (102, 190185), (153, 126790), (155, 125154), (170, 114111), (186, 104295), (255, 76074), (279, 69530), (306, 63395), (310, 62577), (409, 47430), (465, 41718), (510, 38037), (527, 36810), (558, 34765), (765, 25358), (818, 23715), (930, 20859), (1054, 18405), (1227, 15810), (1395, 13906), (1530, 12679), (1581, 12270), (2045, 9486), (2454, 7905), (2635, 7362), (2790, 6953), (3162, 6135), (3681, 5270), (4090, 4743)]