199123990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{4243}}^1$

素因数の和:4301

約数の個数: 48

約数和(自身を含む): 407474928

約数和(自身を除く): 208350938

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 361, 494, 722, 1235, 1805, 2470, 3610, 4243, 4693, 8486, 9386, 21215, 23465, 42430, 46930, 55159, 80617, 110318, 161234, 275795, 403085, 551590, 806170, 1048021, 1531723, 2096042, 3063446, 5240105, 7658615, 10480210, 15317230, 19912399, 39824798, 99561995, 199123990]

約数ペア:

[(1, 199123990), (2, 99561995), (5, 39824798), (10, 19912399), (13, 15317230), (19, 10480210), (26, 7658615), (38, 5240105), (65, 3063446), (95, 2096042), (130, 1531723), (190, 1048021), (247, 806170), (361, 551590), (494, 403085), (722, 275795), (1235, 161234), (1805, 110318), (2470, 80617), (3610, 55159), (4243, 46930), (4693, 42430), (8486, 23465), (9386, 21215)]