20345037412

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{37123}}^1$

素因数の和:37217

約数の個数: 72

約数和(自身を含む): 43686929216

約数和(自身を除く): 23341891804

約数列:

[1, 2, 4, 7, 14, 23, 28, 37, 46, 74, 92, 148, 161, 259, 322, 518, 529, 644, 851, 1036, 1058, 1702, 2116, 3404, 3703, 5957, 7406, 11914, 14812, 19573, 23828, 37123, 39146, 74246, 78292, 137011, 148492, 259861, 274022, 519722, 548044, 853829, 1039444, 1373551, 1707658, 2747102, 3415316, 5494204, 5976803, 9614857, 11953606, 19229714, 19638067, 23907212, 31591673, 38459428, 39276134, 63183346, 78552268, 126366692, 137466469, 221141711, 274932938, 442283422, 549865876, 726608479, 884566844, 1453216958, 2906433916, 5086259353, 10172518706, 20345037412]

約数ペア:

[(1, 20345037412), (2, 10172518706), (4, 5086259353), (7, 2906433916), (14, 1453216958), (23, 884566844), (28, 726608479), (37, 549865876), (46, 442283422), (74, 274932938), (92, 221141711), (148, 137466469), (161, 126366692), (259, 78552268), (322, 63183346), (518, 39276134), (529, 38459428), (644, 31591673), (851, 23907212), (1036, 19638067), (1058, 19229714), (1702, 11953606), (2116, 9614857), (3404, 5976803), (3703, 5494204), (5957, 3415316), (7406, 2747102), (11914, 1707658), (14812, 1373551), (19573, 1039444), (23828, 853829), (37123, 548044), (39146, 519722), (74246, 274022), (78292, 259861), (137011, 148492)]