21326703920

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{60601}}^1$

素因数の和:60750

約数の個数: 80

約数和(自身を含む): 51129664992

約数和(自身を除く): 29802961072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 83, 106, 166, 212, 265, 332, 415, 424, 530, 664, 830, 848, 1060, 1328, 1660, 2120, 3320, 4240, 4399, 6640, 8798, 17596, 21995, 35192, 43990, 60601, 70384, 87980, 121202, 175960, 242404, 303005, 351920, 484808, 606010, 969616, 1212020, 2424040, 3211853, 4848080, 5029883, 6423706, 10059766, 12847412, 16059265, 20119532, 25149415, 25694824, 32118530, 40239064, 50298830, 51389648, 64237060, 80478128, 100597660, 128474120, 201195320, 256948240, 266583799, 402390640, 533167598, 1066335196, 1332918995, 2132670392, 2665837990, 4265340784, 5331675980, 10663351960, 21326703920]

約数ペア:

[(1, 21326703920), (2, 10663351960), (4, 5331675980), (5, 4265340784), (8, 2665837990), (10, 2132670392), (16, 1332918995), (20, 1066335196), (40, 533167598), (53, 402390640), (80, 266583799), (83, 256948240), (106, 201195320), (166, 128474120), (212, 100597660), (265, 80478128), (332, 64237060), (415, 51389648), (424, 50298830), (530, 40239064), (664, 32118530), (830, 25694824), (848, 25149415), (1060, 20119532), (1328, 16059265), (1660, 12847412), (2120, 10059766), (3320, 6423706), (4240, 5029883), (4399, 4848080), (6640, 3211853), (8798, 2424040), (17596, 1212020), (21995, 969616), (35192, 606010), (43990, 484808), (60601, 351920), (70384, 303005), (87980, 242404), (121202, 175960)]