1215414020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{18797}}^1$

素因数の和:18920

約数の個数: 48

約数和(自身を含む): 2643299568

約数和(自身を除く): 1427885548

約数列:

[1, 2, 4, 5, 10, 20, 53, 61, 106, 122, 212, 244, 265, 305, 530, 610, 1060, 1220, 3233, 6466, 12932, 16165, 18797, 32330, 37594, 64660, 75188, 93985, 187970, 375940, 996241, 1146617, 1992482, 2293234, 3984964, 4586468, 4981205, 5733085, 9962410, 11466170, 19924820, 22932340, 60770701, 121541402, 243082804, 303853505, 607707010, 1215414020]

約数ペア:

[(1, 1215414020), (2, 607707010), (4, 303853505), (5, 243082804), (10, 121541402), (20, 60770701), (53, 22932340), (61, 19924820), (106, 11466170), (122, 9962410), (212, 5733085), (244, 4981205), (265, 4586468), (305, 3984964), (530, 2293234), (610, 1992482), (1060, 1146617), (1220, 996241), (3233, 375940), (6466, 187970), (12932, 93985), (16165, 75188), (18797, 64660), (32330, 37594)]