2018103220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{20389}}^1$

素因数の和:20513

約数の個数: 72

約数和(自身を含む): 4978993320

約数和(自身を除く): 2960890100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 101, 140, 196, 202, 245, 404, 490, 505, 707, 980, 1010, 1414, 2020, 2828, 3535, 4949, 7070, 9898, 14140, 19796, 20389, 24745, 40778, 49490, 81556, 98980, 101945, 142723, 203890, 285446, 407780, 570892, 713615, 999061, 1427230, 1998122, 2059289, 2854460, 3996244, 4118578, 4995305, 8237156, 9990610, 10296445, 14415023, 19981220, 20592890, 28830046, 41185780, 57660092, 72075115, 100905161, 144150230, 201810322, 288300460, 403620644, 504525805, 1009051610, 2018103220]

約数ペア:

[(1, 2018103220), (2, 1009051610), (4, 504525805), (5, 403620644), (7, 288300460), (10, 201810322), (14, 144150230), (20, 100905161), (28, 72075115), (35, 57660092), (49, 41185780), (70, 28830046), (98, 20592890), (101, 19981220), (140, 14415023), (196, 10296445), (202, 9990610), (245, 8237156), (404, 4995305), (490, 4118578), (505, 3996244), (707, 2854460), (980, 2059289), (1010, 1998122), (1414, 1427230), (2020, 999061), (2828, 713615), (3535, 570892), (4949, 407780), (7070, 285446), (9898, 203890), (14140, 142723), (19796, 101945), (20389, 98980), (24745, 81556), (40778, 49490)]