81189280

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1571}}^1$

素因数の和:1622

約数の個数: 96

約数和(自身を含む): 213917760

約数和(自身を除く): 132728480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 160, 170, 190, 272, 304, 323, 340, 380, 544, 608, 646, 680, 760, 1292, 1360, 1520, 1571, 1615, 2584, 2720, 3040, 3142, 3230, 5168, 6284, 6460, 7855, 10336, 12568, 12920, 15710, 25136, 25840, 26707, 29849, 31420, 50272, 51680, 53414, 59698, 62840, 106828, 119396, 125680, 133535, 149245, 213656, 238792, 251360, 267070, 298490, 427312, 477584, 507433, 534140, 596980, 854624, 955168, 1014866, 1068280, 1193960, 2029732, 2136560, 2387920, 2537165, 4059464, 4273120, 4775840, 5074330, 8118928, 10148660, 16237856, 20297320, 40594640, 81189280]

約数ペア:

[(1, 81189280), (2, 40594640), (4, 20297320), (5, 16237856), (8, 10148660), (10, 8118928), (16, 5074330), (17, 4775840), (19, 4273120), (20, 4059464), (32, 2537165), (34, 2387920), (38, 2136560), (40, 2029732), (68, 1193960), (76, 1068280), (80, 1014866), (85, 955168), (95, 854624), (136, 596980), (152, 534140), (160, 507433), (170, 477584), (190, 427312), (272, 298490), (304, 267070), (323, 251360), (340, 238792), (380, 213656), (544, 149245), (608, 133535), (646, 125680), (680, 119396), (760, 106828), (1292, 62840), (1360, 59698), (1520, 53414), (1571, 51680), (1615, 50272), (2584, 31420), (2720, 29849), (3040, 26707), (3142, 25840), (3230, 25136), (5168, 15710), (6284, 12920), (6460, 12568), (7855, 10336)]