1385869880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{997}}^1$

素因数の和:1117

約数の個数: 128

約数和(自身を含む): 3449088000

約数和(自身を除く): 2063218120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 59, 62, 76, 95, 118, 124, 152, 155, 190, 236, 248, 295, 310, 380, 472, 589, 590, 620, 760, 997, 1121, 1178, 1180, 1240, 1829, 1994, 2242, 2356, 2360, 2945, 3658, 3988, 4484, 4712, 4985, 5605, 5890, 7316, 7976, 8968, 9145, 9970, 11210, 11780, 14632, 18290, 18943, 19940, 22420, 23560, 30907, 34751, 36580, 37886, 39880, 44840, 58823, 61814, 69502, 73160, 75772, 94715, 117646, 123628, 139004, 151544, 154535, 173755, 189430, 235292, 247256, 278008, 294115, 309070, 347510, 378860, 470584, 587233, 588230, 618140, 695020, 757720, 1117637, 1174466, 1176460, 1236280, 1390040, 1823513, 2235274, 2348932, 2352920, 2936165, 3647026, 4470548, 4697864, 5588185, 5872330, 7294052, 8941096, 9117565, 11176370, 11744660, 14588104, 18235130, 22352740, 23489320, 34646747, 36470260, 44705480, 69293494, 72940520, 138586988, 173233735, 277173976, 346467470, 692934940, 1385869880]

約数ペア:

[(1, 1385869880), (2, 692934940), (4, 346467470), (5, 277173976), (8, 173233735), (10, 138586988), (19, 72940520), (20, 69293494), (31, 44705480), (38, 36470260), (40, 34646747), (59, 23489320), (62, 22352740), (76, 18235130), (95, 14588104), (118, 11744660), (124, 11176370), (152, 9117565), (155, 8941096), (190, 7294052), (236, 5872330), (248, 5588185), (295, 4697864), (310, 4470548), (380, 3647026), (472, 2936165), (589, 2352920), (590, 2348932), (620, 2235274), (760, 1823513), (997, 1390040), (1121, 1236280), (1178, 1176460), (1180, 1174466), (1240, 1117637), (1829, 757720), (1994, 695020), (2242, 618140), (2356, 588230), (2360, 587233), (2945, 470584), (3658, 378860), (3988, 347510), (4484, 309070), (4712, 294115), (4985, 278008), (5605, 247256), (5890, 235292), (7316, 189430), (7976, 173755), (8968, 154535), (9145, 151544), (9970, 139004), (11210, 123628), (11780, 117646), (14632, 94715), (18290, 75772), (18943, 73160), (19940, 69502), (22420, 61814), (23560, 58823), (30907, 44840), (34751, 39880), (36580, 37886)]