20733420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 61157376

約数和(自身を除く): 40423956

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 71, 93, 124, 142, 155, 157, 186, 213, 284, 310, 314, 355, 372, 426, 465, 471, 620, 628, 710, 785, 852, 930, 942, 1065, 1420, 1570, 1860, 1884, 2130, 2201, 2355, 3140, 4260, 4402, 4710, 4867, 6603, 8804, 9420, 9734, 11005, 11147, 13206, 14601, 19468, 22010, 22294, 24335, 26412, 29202, 33015, 33441, 44020, 44588, 48670, 55735, 58404, 66030, 66882, 73005, 97340, 111470, 132060, 133764, 146010, 167205, 222940, 292020, 334410, 345557, 668820, 691114, 1036671, 1382228, 1727785, 2073342, 3455570, 4146684, 5183355, 6911140, 10366710, 20733420]

約数ペア:

[(1, 20733420), (2, 10366710), (3, 6911140), (4, 5183355), (5, 4146684), (6, 3455570), (10, 2073342), (12, 1727785), (15, 1382228), (20, 1036671), (30, 691114), (31, 668820), (60, 345557), (62, 334410), (71, 292020), (93, 222940), (124, 167205), (142, 146010), (155, 133764), (157, 132060), (186, 111470), (213, 97340), (284, 73005), (310, 66882), (314, 66030), (355, 58404), (372, 55735), (426, 48670), (465, 44588), (471, 44020), (620, 33441), (628, 33015), (710, 29202), (785, 26412), (852, 24335), (930, 22294), (942, 22010), (1065, 19468), (1420, 14601), (1570, 13206), (1860, 11147), (1884, 11005), (2130, 9734), (2201, 9420), (2355, 8804), (3140, 6603), (4260, 4867), (4402, 4710)]