204080587490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4021}}^1\times {\mathrm{390413}}^1$

素因数の和:394454

約数の個数: 32

約数和(自身を含む): 395701767216

約数和(自身を除く): 191621179726

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 4021, 8042, 20105, 40210, 52273, 104546, 261365, 390413, 522730, 780826, 1952065, 3904130, 5075369, 10150738, 25376845, 50753690, 1569850673, 3139701346, 7849253365, 15698506730, 20408058749, 40816117498, 102040293745, 204080587490]

約数ペア:

[(1, 204080587490), (2, 102040293745), (5, 40816117498), (10, 20408058749), (13, 15698506730), (26, 7849253365), (65, 3139701346), (130, 1569850673), (4021, 50753690), (8042, 25376845), (20105, 10150738), (40210, 5075369), (52273, 3904130), (104546, 1952065), (261365, 780826), (390413, 522730)]