80954020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:881

約数の個数: 96

約数和(自身を含む): 209534976

約数和(自身を除く): 128580956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 140, 155, 161, 217, 230, 310, 322, 434, 460, 620, 644, 713, 805, 811, 868, 1085, 1426, 1610, 1622, 2170, 2852, 3220, 3244, 3565, 4055, 4340, 4991, 5677, 7130, 8110, 9982, 11354, 14260, 16220, 18653, 19964, 22708, 24955, 25141, 28385, 37306, 49910, 50282, 56770, 74612, 93265, 99820, 100564, 113540, 125705, 130571, 175987, 186530, 251410, 261142, 351974, 373060, 502820, 522284, 578243, 652855, 703948, 879935, 1156486, 1305710, 1759870, 2312972, 2611420, 2891215, 3519740, 4047701, 5782430, 8095402, 11564860, 16190804, 20238505, 40477010, 80954020]

約数ペア:

[(1, 80954020), (2, 40477010), (4, 20238505), (5, 16190804), (7, 11564860), (10, 8095402), (14, 5782430), (20, 4047701), (23, 3519740), (28, 2891215), (31, 2611420), (35, 2312972), (46, 1759870), (62, 1305710), (70, 1156486), (92, 879935), (115, 703948), (124, 652855), (140, 578243), (155, 522284), (161, 502820), (217, 373060), (230, 351974), (310, 261142), (322, 251410), (434, 186530), (460, 175987), (620, 130571), (644, 125705), (713, 113540), (805, 100564), (811, 99820), (868, 93265), (1085, 74612), (1426, 56770), (1610, 50282), (1622, 49910), (2170, 37306), (2852, 28385), (3220, 25141), (3244, 24955), (3565, 22708), (4055, 19964), (4340, 18653), (4991, 16220), (5677, 14260), (7130, 11354), (8110, 9982)]