72701720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19973}}^1$

素因数の和:20004

約数の個数: 64

約数和(自身を含む): 201337920

約数和(自身を除く): 128636200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 19973, 39946, 79892, 99865, 139811, 159784, 199730, 259649, 279622, 399460, 519298, 559244, 699055, 798920, 1038596, 1118488, 1298245, 1398110, 1817543, 2077192, 2596490, 2796220, 3635086, 5192980, 5592440, 7270172, 9087715, 10385960, 14540344, 18175430, 36350860, 72701720]

約数ペア:

[(1, 72701720), (2, 36350860), (4, 18175430), (5, 14540344), (7, 10385960), (8, 9087715), (10, 7270172), (13, 5592440), (14, 5192980), (20, 3635086), (26, 2796220), (28, 2596490), (35, 2077192), (40, 1817543), (52, 1398110), (56, 1298245), (65, 1118488), (70, 1038596), (91, 798920), (104, 699055), (130, 559244), (140, 519298), (182, 399460), (260, 279622), (280, 259649), (364, 199730), (455, 159784), (520, 139811), (728, 99865), (910, 79892), (1820, 39946), (3640, 19973)]