81178398

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2969}}^1$

素因数の和:3022

約数の個数: 72

約数和(自身を含む): 211273920

約数和(自身を除く): 130095522

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 49, 62, 63, 93, 98, 126, 147, 186, 217, 279, 294, 434, 441, 558, 651, 882, 1302, 1519, 1953, 2969, 3038, 3906, 4557, 5938, 8907, 9114, 13671, 17814, 20783, 26721, 27342, 41566, 53442, 62349, 92039, 124698, 145481, 184078, 187047, 276117, 290962, 374094, 436443, 552234, 644273, 828351, 872886, 1288546, 1309329, 1656702, 1932819, 2618658, 3865638, 4509911, 5798457, 9019822, 11596914, 13529733, 27059466, 40589199, 81178398]

約数ペア:

[(1, 81178398), (2, 40589199), (3, 27059466), (6, 13529733), (7, 11596914), (9, 9019822), (14, 5798457), (18, 4509911), (21, 3865638), (31, 2618658), (42, 1932819), (49, 1656702), (62, 1309329), (63, 1288546), (93, 872886), (98, 828351), (126, 644273), (147, 552234), (186, 436443), (217, 374094), (279, 290962), (294, 276117), (434, 187047), (441, 184078), (558, 145481), (651, 124698), (882, 92039), (1302, 62349), (1519, 53442), (1953, 41566), (2969, 27342), (3038, 26721), (3906, 20783), (4557, 17814), (5938, 13671), (8907, 9114)]