21447778180

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1\times {\mathrm{593}}^1$

素因数の和:1033

約数の個数: 96

約数和(自身を含む): 46478124000

約数和(自身を除く): 25030345820

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 149, 212, 229, 265, 298, 458, 530, 593, 596, 745, 916, 1060, 1145, 1186, 1490, 2290, 2372, 2965, 2980, 4580, 5930, 7897, 11860, 12137, 15794, 24274, 31429, 31588, 34121, 39485, 48548, 60685, 62858, 68242, 78970, 88357, 121370, 125716, 135797, 136484, 157145, 157940, 170605, 176714, 242740, 271594, 314290, 341210, 353428, 441785, 543188, 628580, 678985, 682420, 883570, 1357970, 1767140, 1808413, 2715940, 3616826, 4682921, 7197241, 7233652, 9042065, 9365842, 14394482, 18084130, 18731684, 20233753, 23414605, 28788964, 35986205, 36168260, 40467506, 46829210, 71972410, 80935012, 93658420, 101168765, 143944820, 202337530, 404675060, 1072388909, 2144777818, 4289555636, 5361944545, 10723889090, 21447778180]

約数ペア:

[(1, 21447778180), (2, 10723889090), (4, 5361944545), (5, 4289555636), (10, 2144777818), (20, 1072388909), (53, 404675060), (106, 202337530), (149, 143944820), (212, 101168765), (229, 93658420), (265, 80935012), (298, 71972410), (458, 46829210), (530, 40467506), (593, 36168260), (596, 35986205), (745, 28788964), (916, 23414605), (1060, 20233753), (1145, 18731684), (1186, 18084130), (1490, 14394482), (2290, 9365842), (2372, 9042065), (2965, 7233652), (2980, 7197241), (4580, 4682921), (5930, 3616826), (7897, 2715940), (11860, 1808413), (12137, 1767140), (15794, 1357970), (24274, 883570), (31429, 682420), (31588, 678985), (34121, 628580), (39485, 543188), (48548, 441785), (60685, 353428), (62858, 341210), (68242, 314290), (78970, 271594), (88357, 242740), (121370, 176714), (125716, 170605), (135797, 157940), (136484, 157145)]