138361420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 319979520

約数和(自身を除く): 181618100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 61, 76, 94, 95, 122, 127, 188, 190, 235, 244, 254, 305, 380, 470, 508, 610, 635, 893, 940, 1159, 1220, 1270, 1786, 2318, 2413, 2540, 2867, 3572, 4465, 4636, 4826, 5734, 5795, 5969, 7747, 8930, 9652, 11468, 11590, 11938, 12065, 14335, 15494, 17860, 23180, 23876, 24130, 28670, 29845, 30988, 38735, 48260, 54473, 57340, 59690, 77470, 108946, 113411, 119380, 147193, 154940, 217892, 226822, 272365, 294386, 364109, 453644, 544730, 567055, 588772, 728218, 735965, 1089460, 1134110, 1456436, 1471930, 1820545, 2268220, 2943860, 3641090, 6918071, 7282180, 13836142, 27672284, 34590355, 69180710, 138361420]

約数ペア:

[(1, 138361420), (2, 69180710), (4, 34590355), (5, 27672284), (10, 13836142), (19, 7282180), (20, 6918071), (38, 3641090), (47, 2943860), (61, 2268220), (76, 1820545), (94, 1471930), (95, 1456436), (122, 1134110), (127, 1089460), (188, 735965), (190, 728218), (235, 588772), (244, 567055), (254, 544730), (305, 453644), (380, 364109), (470, 294386), (508, 272365), (610, 226822), (635, 217892), (893, 154940), (940, 147193), (1159, 119380), (1220, 113411), (1270, 108946), (1786, 77470), (2318, 59690), (2413, 57340), (2540, 54473), (2867, 48260), (3572, 38735), (4465, 30988), (4636, 29845), (4826, 28670), (5734, 24130), (5795, 23876), (5969, 23180), (7747, 17860), (8930, 15494), (9652, 14335), (11468, 12065), (11590, 11938)]