20406483650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{503}}^1\times {\mathrm{571}}^1$

素因数の和:1129

約数の個数: 144

約数和(自身を含む): 45846440640

約数和(自身を除く): 25439956990

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 49, 50, 58, 70, 98, 145, 175, 203, 245, 290, 350, 406, 490, 503, 571, 725, 1006, 1015, 1142, 1225, 1421, 1450, 2030, 2450, 2515, 2842, 2855, 3521, 3997, 5030, 5075, 5710, 7042, 7105, 7994, 10150, 12575, 14210, 14275, 14587, 16559, 17605, 19985, 24647, 25150, 27979, 28550, 29174, 33118, 35210, 35525, 39970, 49294, 55958, 71050, 72935, 82795, 88025, 99925, 102109, 115913, 123235, 139895, 145870, 165590, 176050, 199850, 204218, 231826, 246470, 279790, 287213, 364675, 413975, 510545, 574426, 579565, 616175, 699475, 714763, 729350, 811391, 827950, 1021090, 1159130, 1232350, 1398950, 1429526, 1436065, 1622782, 2010491, 2552725, 2872130, 2897825, 3573815, 4020982, 4056955, 5105450, 5795650, 7147630, 7180325, 8113910, 8329177, 10052455, 14073437, 14360650, 16658354, 17869075, 20104910, 20284775, 28146874, 35738150, 40569550, 41645885, 50262275, 58304239, 70367185, 83291770, 100524550, 116608478, 140734370, 208229425, 291521195, 351835925, 408129673, 416458850, 583042390, 703671850, 816259346, 1457605975, 2040648365, 2915211950, 4081296730, 10203241825, 20406483650]

約数ペア:

[(1, 20406483650), (2, 10203241825), (5, 4081296730), (7, 2915211950), (10, 2040648365), (14, 1457605975), (25, 816259346), (29, 703671850), (35, 583042390), (49, 416458850), (50, 408129673), (58, 351835925), (70, 291521195), (98, 208229425), (145, 140734370), (175, 116608478), (203, 100524550), (245, 83291770), (290, 70367185), (350, 58304239), (406, 50262275), (490, 41645885), (503, 40569550), (571, 35738150), (725, 28146874), (1006, 20284775), (1015, 20104910), (1142, 17869075), (1225, 16658354), (1421, 14360650), (1450, 14073437), (2030, 10052455), (2450, 8329177), (2515, 8113910), (2842, 7180325), (2855, 7147630), (3521, 5795650), (3997, 5105450), (5030, 4056955), (5075, 4020982), (5710, 3573815), (7042, 2897825), (7105, 2872130), (7994, 2552725), (10150, 2010491), (12575, 1622782), (14210, 1436065), (14275, 1429526), (14587, 1398950), (16559, 1232350), (17605, 1159130), (19985, 1021090), (24647, 827950), (25150, 811391), (27979, 729350), (28550, 714763), (29174, 699475), (33118, 616175), (35210, 579565), (35525, 574426), (39970, 510545), (49294, 413975), (55958, 364675), (71050, 287213), (72935, 279790), (82795, 246470), (88025, 231826), (99925, 204218), (102109, 199850), (115913, 176050), (123235, 165590), (139895, 145870)]