173291240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:211

約数の個数: 128

約数和(自身を含む): 428544000

約数和(自身を除く): 255252760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 61, 62, 79, 116, 122, 124, 145, 155, 158, 232, 244, 248, 290, 305, 310, 316, 395, 488, 580, 610, 620, 632, 790, 899, 1160, 1220, 1240, 1580, 1769, 1798, 1891, 2291, 2440, 2449, 3160, 3538, 3596, 3782, 4495, 4582, 4819, 4898, 7076, 7192, 7564, 8845, 8990, 9164, 9455, 9638, 9796, 11455, 12245, 14152, 15128, 17690, 17980, 18328, 18910, 19276, 19592, 22910, 24095, 24490, 35380, 35960, 37820, 38552, 45820, 48190, 48980, 54839, 70760, 71021, 75640, 91640, 96380, 97960, 109678, 139751, 142042, 149389, 192760, 219356, 274195, 279502, 284084, 298778, 355105, 438712, 548390, 559004, 568168, 597556, 698755, 710210, 746945, 1096780, 1118008, 1195112, 1397510, 1420420, 1493890, 2193560, 2795020, 2840840, 2987780, 4332281, 5590040, 5975560, 8664562, 17329124, 21661405, 34658248, 43322810, 86645620, 173291240]

約数ペア:

[(1, 173291240), (2, 86645620), (4, 43322810), (5, 34658248), (8, 21661405), (10, 17329124), (20, 8664562), (29, 5975560), (31, 5590040), (40, 4332281), (58, 2987780), (61, 2840840), (62, 2795020), (79, 2193560), (116, 1493890), (122, 1420420), (124, 1397510), (145, 1195112), (155, 1118008), (158, 1096780), (232, 746945), (244, 710210), (248, 698755), (290, 597556), (305, 568168), (310, 559004), (316, 548390), (395, 438712), (488, 355105), (580, 298778), (610, 284084), (620, 279502), (632, 274195), (790, 219356), (899, 192760), (1160, 149389), (1220, 142042), (1240, 139751), (1580, 109678), (1769, 97960), (1798, 96380), (1891, 91640), (2291, 75640), (2440, 71021), (2449, 70760), (3160, 54839), (3538, 48980), (3596, 48190), (3782, 45820), (4495, 38552), (4582, 37820), (4819, 35960), (4898, 35380), (7076, 24490), (7192, 24095), (7564, 22910), (8845, 19592), (8990, 19276), (9164, 18910), (9455, 18328), (9638, 17980), (9796, 17690), (11455, 15128), (12245, 14152)]