18749367040

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{1181}}^1$

素因数の和:1438

約数の個数: 144

約数和(自身を含む): 45807511680

約数和(自身を除く): 27058144640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 157, 158, 160, 256, 314, 316, 320, 395, 628, 632, 640, 785, 790, 1181, 1256, 1264, 1280, 1570, 1580, 2362, 2512, 2528, 3140, 3160, 4724, 5024, 5056, 5905, 6280, 6320, 9448, 10048, 10112, 11810, 12403, 12560, 12640, 18896, 20096, 20224, 23620, 24806, 25120, 25280, 37792, 40192, 47240, 49612, 50240, 50560, 62015, 75584, 93299, 94480, 99224, 100480, 101120, 124030, 151168, 185417, 186598, 188960, 198448, 200960, 248060, 302336, 370834, 373196, 377920, 396896, 466495, 496120, 741668, 746392, 755840, 793792, 927085, 932990, 992240, 1483336, 1492784, 1511680, 1587584, 1854170, 1865980, 1984480, 2966672, 2985568, 3175168, 3708340, 3731960, 3968960, 5933344, 5971136, 7416680, 7463920, 7937920, 11866688, 11942272, 14647943, 14833360, 14927840, 15875840, 23733376, 23884544, 29295886, 29666720, 29855680, 47466752, 58591772, 59333440, 59711360, 73239715, 117183544, 118666880, 119422720, 146479430, 234367088, 237333760, 292958860, 468734176, 585917720, 937468352, 1171835440, 1874936704, 2343670880, 3749873408, 4687341760, 9374683520, 18749367040]

約数ペア:

[(1, 18749367040), (2, 9374683520), (4, 4687341760), (5, 3749873408), (8, 2343670880), (10, 1874936704), (16, 1171835440), (20, 937468352), (32, 585917720), (40, 468734176), (64, 292958860), (79, 237333760), (80, 234367088), (128, 146479430), (157, 119422720), (158, 118666880), (160, 117183544), (256, 73239715), (314, 59711360), (316, 59333440), (320, 58591772), (395, 47466752), (628, 29855680), (632, 29666720), (640, 29295886), (785, 23884544), (790, 23733376), (1181, 15875840), (1256, 14927840), (1264, 14833360), (1280, 14647943), (1570, 11942272), (1580, 11866688), (2362, 7937920), (2512, 7463920), (2528, 7416680), (3140, 5971136), (3160, 5933344), (4724, 3968960), (5024, 3731960), (5056, 3708340), (5905, 3175168), (6280, 2985568), (6320, 2966672), (9448, 1984480), (10048, 1865980), (10112, 1854170), (11810, 1587584), (12403, 1511680), (12560, 1492784), (12640, 1483336), (18896, 992240), (20096, 932990), (20224, 927085), (23620, 793792), (24806, 755840), (25120, 746392), (25280, 741668), (37792, 496120), (40192, 466495), (47240, 396896), (49612, 377920), (50240, 373196), (50560, 370834), (62015, 302336), (75584, 248060), (93299, 200960), (94480, 198448), (99224, 188960), (100480, 186598), (101120, 185417), (124030, 151168)]