25115530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:295

約数の個数: 64

約数和(自身を含む): 53032320

約数和(自身を除く): 27916790

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 61, 95, 110, 122, 190, 197, 209, 305, 394, 418, 610, 671, 985, 1045, 1159, 1342, 1970, 2090, 2167, 2318, 3355, 3743, 4334, 5795, 6710, 7486, 10835, 11590, 12017, 12749, 18715, 21670, 24034, 25498, 37430, 41173, 60085, 63745, 82346, 120170, 127490, 132187, 205865, 228323, 264374, 411730, 456646, 660935, 1141615, 1321870, 2283230, 2511553, 5023106, 12557765, 25115530]

約数ペア:

[(1, 25115530), (2, 12557765), (5, 5023106), (10, 2511553), (11, 2283230), (19, 1321870), (22, 1141615), (38, 660935), (55, 456646), (61, 411730), (95, 264374), (110, 228323), (122, 205865), (190, 132187), (197, 127490), (209, 120170), (305, 82346), (394, 63745), (418, 60085), (610, 41173), (671, 37430), (985, 25498), (1045, 24034), (1159, 21670), (1342, 18715), (1970, 12749), (2090, 12017), (2167, 11590), (2318, 10835), (3355, 7486), (3743, 6710), (4334, 5795)]