204639890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4243}}^1$

素因数の和:4323

約数の個数: 64

約数和(自身を含む): 462018816

約数和(自身を除く): 257378926

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 53, 65, 70, 91, 106, 130, 182, 265, 371, 455, 530, 689, 742, 910, 1378, 1855, 3445, 3710, 4243, 4823, 6890, 8486, 9646, 21215, 24115, 29701, 42430, 48230, 55159, 59402, 110318, 148505, 224879, 275795, 297010, 386113, 449758, 551590, 772226, 1124395, 1574153, 1930565, 2248790, 2923427, 3148306, 3861130, 5846854, 7870765, 14617135, 15741530, 20463989, 29234270, 40927978, 102319945, 204639890]

約数ペア:

[(1, 204639890), (2, 102319945), (5, 40927978), (7, 29234270), (10, 20463989), (13, 15741530), (14, 14617135), (26, 7870765), (35, 5846854), (53, 3861130), (65, 3148306), (70, 2923427), (91, 2248790), (106, 1930565), (130, 1574153), (182, 1124395), (265, 772226), (371, 551590), (455, 449758), (530, 386113), (689, 297010), (742, 275795), (910, 224879), (1378, 148505), (1855, 110318), (3445, 59402), (3710, 55159), (4243, 48230), (4823, 42430), (6890, 29701), (8486, 24115), (9646, 21215)]