20936480

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:202

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 32406880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 71, 76, 80, 95, 97, 142, 152, 160, 190, 194, 284, 304, 355, 380, 388, 485, 568, 608, 710, 760, 776, 970, 1136, 1349, 1420, 1520, 1552, 1843, 1940, 2272, 2698, 2840, 3040, 3104, 3686, 3880, 5396, 5680, 6745, 6887, 7372, 7760, 9215, 10792, 11360, 13490, 13774, 14744, 15520, 18430, 21584, 26980, 27548, 29488, 34435, 36860, 43168, 53960, 55096, 58976, 68870, 73720, 107920, 110192, 130853, 137740, 147440, 215840, 220384, 261706, 275480, 294880, 523412, 550960, 654265, 1046824, 1101920, 1308530, 2093648, 2617060, 4187296, 5234120, 10468240, 20936480]

約数ペア:

[(1, 20936480), (2, 10468240), (4, 5234120), (5, 4187296), (8, 2617060), (10, 2093648), (16, 1308530), (19, 1101920), (20, 1046824), (32, 654265), (38, 550960), (40, 523412), (71, 294880), (76, 275480), (80, 261706), (95, 220384), (97, 215840), (142, 147440), (152, 137740), (160, 130853), (190, 110192), (194, 107920), (284, 73720), (304, 68870), (355, 58976), (380, 55096), (388, 53960), (485, 43168), (568, 36860), (608, 34435), (710, 29488), (760, 27548), (776, 26980), (970, 21584), (1136, 18430), (1349, 15520), (1420, 14744), (1520, 13774), (1552, 13490), (1843, 11360), (1940, 10792), (2272, 9215), (2698, 7760), (2840, 7372), (3040, 6887), (3104, 6745), (3686, 5680), (3880, 5396)]