1900989870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{997}}^1\times {\mathrm{4889}}^1$

素因数の和:5909

約数の個数: 64

約数和(自身を含む): 4919261760

約数和(自身を除く): 3018271890

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 997, 1994, 2991, 4889, 4985, 5982, 9778, 9970, 12961, 14667, 14955, 24445, 25922, 29334, 29910, 38883, 48890, 63557, 64805, 73335, 77766, 127114, 129610, 146670, 190671, 194415, 317785, 381342, 388830, 635570, 953355, 1906710, 4874333, 9748666, 14622999, 24371665, 29245998, 48743330, 63366329, 73114995, 126732658, 146229990, 190098987, 316831645, 380197974, 633663290, 950494935, 1900989870]

約数ペア:

[(1, 1900989870), (2, 950494935), (3, 633663290), (5, 380197974), (6, 316831645), (10, 190098987), (13, 146229990), (15, 126732658), (26, 73114995), (30, 63366329), (39, 48743330), (65, 29245998), (78, 24371665), (130, 14622999), (195, 9748666), (390, 4874333), (997, 1906710), (1994, 953355), (2991, 635570), (4889, 388830), (4985, 381342), (5982, 317785), (9778, 194415), (9970, 190671), (12961, 146670), (14667, 129610), (14955, 127114), (24445, 77766), (25922, 73335), (29334, 64805), (29910, 63557), (38883, 48890)]