80444140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{9739}}^1$

素因数の和:9814

約数の個数: 48

約数和(自身を含む): 196358400

約数和(自身を除く): 115914260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 236, 295, 413, 590, 826, 1180, 1652, 2065, 4130, 8260, 9739, 19478, 38956, 48695, 68173, 97390, 136346, 194780, 272692, 340865, 574601, 681730, 1149202, 1363460, 2298404, 2873005, 4022207, 5746010, 8044414, 11492020, 16088828, 20111035, 40222070, 80444140]

約数ペア:

[(1, 80444140), (2, 40222070), (4, 20111035), (5, 16088828), (7, 11492020), (10, 8044414), (14, 5746010), (20, 4022207), (28, 2873005), (35, 2298404), (59, 1363460), (70, 1149202), (118, 681730), (140, 574601), (236, 340865), (295, 272692), (413, 194780), (590, 136346), (826, 97390), (1180, 68173), (1652, 48695), (2065, 38956), (4130, 19478), (8260, 9739)]