31405120

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:308

約数の個数: 112

約数和(自身を含む): 82954368

約数和(自身を除く): 51549248

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 64, 68, 80, 85, 92, 115, 136, 160, 170, 184, 230, 251, 272, 320, 340, 368, 391, 460, 502, 544, 680, 736, 782, 920, 1004, 1088, 1255, 1360, 1472, 1564, 1840, 1955, 2008, 2510, 2720, 3128, 3680, 3910, 4016, 4267, 5020, 5440, 5773, 6256, 7360, 7820, 8032, 8534, 10040, 11546, 12512, 15640, 16064, 17068, 20080, 21335, 23092, 25024, 28865, 31280, 34136, 40160, 42670, 46184, 57730, 62560, 68272, 80320, 85340, 92368, 98141, 115460, 125120, 136544, 170680, 184736, 196282, 230920, 273088, 341360, 369472, 392564, 461840, 490705, 682720, 785128, 923680, 981410, 1365440, 1570256, 1847360, 1962820, 3140512, 3925640, 6281024, 7851280, 15702560, 31405120]

約数ペア:

[(1, 31405120), (2, 15702560), (4, 7851280), (5, 6281024), (8, 3925640), (10, 3140512), (16, 1962820), (17, 1847360), (20, 1570256), (23, 1365440), (32, 981410), (34, 923680), (40, 785128), (46, 682720), (64, 490705), (68, 461840), (80, 392564), (85, 369472), (92, 341360), (115, 273088), (136, 230920), (160, 196282), (170, 184736), (184, 170680), (230, 136544), (251, 125120), (272, 115460), (320, 98141), (340, 92368), (368, 85340), (391, 80320), (460, 68272), (502, 62560), (544, 57730), (680, 46184), (736, 42670), (782, 40160), (920, 34136), (1004, 31280), (1088, 28865), (1255, 25024), (1360, 23092), (1472, 21335), (1564, 20080), (1840, 17068), (1955, 16064), (2008, 15640), (2510, 12512), (2720, 11546), (3128, 10040), (3680, 8534), (3910, 8032), (4016, 7820), (4267, 7360), (5020, 6256), (5440, 5773)]