18961740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:272

約数の個数: 144

約数和(自身を含む): 66830400

約数和(自身を除く): 47868660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 101, 105, 126, 140, 149, 180, 202, 210, 252, 298, 303, 315, 404, 420, 447, 505, 596, 606, 630, 707, 745, 894, 909, 1010, 1043, 1212, 1260, 1341, 1414, 1490, 1515, 1788, 1818, 2020, 2086, 2121, 2235, 2682, 2828, 2980, 3030, 3129, 3535, 3636, 4172, 4242, 4470, 4545, 5215, 5364, 6060, 6258, 6363, 6705, 7070, 8484, 8940, 9090, 9387, 10430, 10605, 12516, 12726, 13410, 14140, 15049, 15645, 18180, 18774, 20860, 21210, 25452, 26820, 30098, 31290, 31815, 37548, 42420, 45147, 46935, 60196, 62580, 63630, 75245, 90294, 93870, 105343, 127260, 135441, 150490, 180588, 187740, 210686, 225735, 270882, 300980, 316029, 421372, 451470, 526715, 541764, 632058, 677205, 902940, 948087, 1053430, 1264116, 1354410, 1580145, 1896174, 2106860, 2708820, 3160290, 3792348, 4740435, 6320580, 9480870, 18961740]

約数ペア:

[(1, 18961740), (2, 9480870), (3, 6320580), (4, 4740435), (5, 3792348), (6, 3160290), (7, 2708820), (9, 2106860), (10, 1896174), (12, 1580145), (14, 1354410), (15, 1264116), (18, 1053430), (20, 948087), (21, 902940), (28, 677205), (30, 632058), (35, 541764), (36, 526715), (42, 451470), (45, 421372), (60, 316029), (63, 300980), (70, 270882), (84, 225735), (90, 210686), (101, 187740), (105, 180588), (126, 150490), (140, 135441), (149, 127260), (180, 105343), (202, 93870), (210, 90294), (252, 75245), (298, 63630), (303, 62580), (315, 60196), (404, 46935), (420, 45147), (447, 42420), (505, 37548), (596, 31815), (606, 31290), (630, 30098), (707, 26820), (745, 25452), (894, 21210), (909, 20860), (1010, 18774), (1043, 18180), (1212, 15645), (1260, 15049), (1341, 14140), (1414, 13410), (1490, 12726), (1515, 12516), (1788, 10605), (1818, 10430), (2020, 9387), (2086, 9090), (2121, 8940), (2235, 8484), (2682, 7070), (2828, 6705), (2980, 6363), (3030, 6258), (3129, 6060), (3535, 5364), (3636, 5215), (4172, 4545), (4242, 4470)]