12647920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 31739040

約数和(自身を除く): 19091120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 53, 76, 80, 95, 106, 152, 157, 190, 212, 265, 304, 314, 380, 424, 530, 628, 760, 785, 848, 1007, 1060, 1256, 1520, 1570, 2014, 2120, 2512, 2983, 3140, 4028, 4240, 5035, 5966, 6280, 8056, 8321, 10070, 11932, 12560, 14915, 16112, 16642, 20140, 23864, 29830, 33284, 40280, 41605, 47728, 59660, 66568, 80560, 83210, 119320, 133136, 158099, 166420, 238640, 316198, 332840, 632396, 665680, 790495, 1264792, 1580990, 2529584, 3161980, 6323960, 12647920]

約数ペア:

[(1, 12647920), (2, 6323960), (4, 3161980), (5, 2529584), (8, 1580990), (10, 1264792), (16, 790495), (19, 665680), (20, 632396), (38, 332840), (40, 316198), (53, 238640), (76, 166420), (80, 158099), (95, 133136), (106, 119320), (152, 83210), (157, 80560), (190, 66568), (212, 59660), (265, 47728), (304, 41605), (314, 40280), (380, 33284), (424, 29830), (530, 23864), (628, 20140), (760, 16642), (785, 16112), (848, 14915), (1007, 12560), (1060, 11932), (1256, 10070), (1520, 8321), (1570, 8056), (2014, 6280), (2120, 5966), (2512, 5035), (2983, 4240), (3140, 4028)]