79804001180

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{313}}^1\times {\mathrm{81199}}^1$

素因数の和:81678

約数の個数: 48

約数和(自身を含む): 169196764800

約数和(自身を除く): 89392763620

約数列:

[1, 2, 4, 5, 10, 20, 157, 313, 314, 626, 628, 785, 1252, 1565, 1570, 3130, 3140, 6260, 49141, 81199, 98282, 162398, 196564, 245705, 324796, 405995, 491410, 811990, 982820, 1623980, 12748243, 25415287, 25496486, 50830574, 50992972, 63741215, 101661148, 127076435, 127482430, 254152870, 254964860, 508305740, 3990200059, 7980400118, 15960800236, 19951000295, 39902000590, 79804001180]

約数ペア:

[(1, 79804001180), (2, 39902000590), (4, 19951000295), (5, 15960800236), (10, 7980400118), (20, 3990200059), (157, 508305740), (313, 254964860), (314, 254152870), (626, 127482430), (628, 127076435), (785, 101661148), (1252, 63741215), (1565, 50992972), (1570, 50830574), (3130, 25496486), (3140, 25415287), (6260, 12748243), (49141, 1623980), (81199, 982820), (98282, 811990), (162398, 491410), (196564, 405995), (245705, 324796)]