20965431040

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{1879}}^1$

素因数の和:2302

約数の個数: 144

約数和(自身を含む): 52568409600

約数和(自身を除く): 31602978560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 379, 460, 640, 736, 758, 920, 1280, 1472, 1516, 1840, 1879, 1895, 2944, 3032, 3680, 3758, 3790, 5888, 6064, 7360, 7516, 7580, 8717, 9395, 12128, 14720, 15032, 15160, 17434, 18790, 24256, 29440, 30064, 30320, 34868, 37580, 43217, 43585, 48512, 60128, 60640, 69736, 75160, 86434, 87170, 97024, 120256, 121280, 139472, 150320, 172868, 174340, 216085, 240512, 242560, 278944, 300640, 345736, 348680, 432170, 481024, 485120, 557888, 601280, 691472, 697360, 712141, 864340, 1115776, 1202560, 1382944, 1394720, 1424282, 1728680, 2231552, 2405120, 2765888, 2789440, 2848564, 3457360, 3560705, 5531776, 5578880, 5697128, 6914720, 7121410, 11063552, 11157760, 11394256, 13829440, 14242820, 16379243, 22788512, 27658880, 28485640, 32758486, 45577024, 55317760, 56971280, 65516972, 81896215, 91154048, 113942560, 131033944, 163792430, 182308096, 227885120, 262067888, 327584860, 455770240, 524135776, 655169720, 911540480, 1048271552, 1310339440, 2096543104, 2620678880, 4193086208, 5241357760, 10482715520, 20965431040]

約数ペア:

[(1, 20965431040), (2, 10482715520), (4, 5241357760), (5, 4193086208), (8, 2620678880), (10, 2096543104), (16, 1310339440), (20, 1048271552), (23, 911540480), (32, 655169720), (40, 524135776), (46, 455770240), (64, 327584860), (80, 262067888), (92, 227885120), (115, 182308096), (128, 163792430), (160, 131033944), (184, 113942560), (230, 91154048), (256, 81896215), (320, 65516972), (368, 56971280), (379, 55317760), (460, 45577024), (640, 32758486), (736, 28485640), (758, 27658880), (920, 22788512), (1280, 16379243), (1472, 14242820), (1516, 13829440), (1840, 11394256), (1879, 11157760), (1895, 11063552), (2944, 7121410), (3032, 6914720), (3680, 5697128), (3758, 5578880), (3790, 5531776), (5888, 3560705), (6064, 3457360), (7360, 2848564), (7516, 2789440), (7580, 2765888), (8717, 2405120), (9395, 2231552), (12128, 1728680), (14720, 1424282), (15032, 1394720), (15160, 1382944), (17434, 1202560), (18790, 1115776), (24256, 864340), (29440, 712141), (30064, 697360), (30320, 691472), (34868, 601280), (37580, 557888), (43217, 485120), (43585, 481024), (48512, 432170), (60128, 348680), (60640, 345736), (69736, 300640), (75160, 278944), (86434, 242560), (87170, 240512), (97024, 216085), (120256, 174340), (121280, 172868), (139472, 150320)]