20121969175

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{7703}}^1$

素因数の和:7813

約数の個数: 96

約数和(自身を含む): 33015029760

約数和(自身を除く): 12893060585

約数列:

[1, 5, 7, 11, 23, 25, 35, 55, 59, 77, 115, 161, 175, 253, 275, 295, 385, 413, 575, 649, 805, 1265, 1357, 1475, 1771, 1925, 2065, 3245, 4025, 4543, 6325, 6785, 7703, 8855, 9499, 10325, 14927, 16225, 22715, 33925, 38515, 44275, 47495, 53921, 74635, 84733, 104489, 113575, 177169, 192575, 237475, 269605, 373175, 423665, 454477, 522445, 593131, 885845, 1240183, 1348025, 1948859, 2118325, 2272385, 2612225, 2965655, 3181339, 4429225, 4999247, 6200915, 9744295, 10452971, 11361925, 13642013, 14828275, 15906695, 24996235, 31004575, 34994729, 48721475, 52264855, 68210065, 73170797, 79533475, 114982681, 124981175, 174973645, 261324275, 341050325, 365853985, 574913405, 804878767, 874868225, 1829269925, 2874567025, 4024393835, 20121969175]

約数ペア:

[(1, 20121969175), (5, 4024393835), (7, 2874567025), (11, 1829269925), (23, 874868225), (25, 804878767), (35, 574913405), (55, 365853985), (59, 341050325), (77, 261324275), (115, 174973645), (161, 124981175), (175, 114982681), (253, 79533475), (275, 73170797), (295, 68210065), (385, 52264855), (413, 48721475), (575, 34994729), (649, 31004575), (805, 24996235), (1265, 15906695), (1357, 14828275), (1475, 13642013), (1771, 11361925), (1925, 10452971), (2065, 9744295), (3245, 6200915), (4025, 4999247), (4543, 4429225), (6325, 3181339), (6785, 2965655), (7703, 2612225), (8855, 2272385), (9499, 2118325), (10325, 1948859), (14927, 1348025), (16225, 1240183), (22715, 885845), (33925, 593131), (38515, 522445), (44275, 454477), (47495, 423665), (53921, 373175), (74635, 269605), (84733, 237475), (104489, 192575), (113575, 177169)]