81814850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{659}}^1$

素因数の和:875

約数の個数: 48

約数和(自身を含む): 164989440

約数和(自身を除く): 83174590

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 191, 325, 382, 650, 659, 955, 1318, 1910, 2483, 3295, 4775, 4966, 6590, 8567, 9550, 12415, 16475, 17134, 24830, 32950, 42835, 62075, 85670, 124150, 125869, 214175, 251738, 428350, 629345, 1258690, 1636297, 3146725, 3272594, 6293450, 8181485, 16362970, 40907425, 81814850]

約数ペア:

[(1, 81814850), (2, 40907425), (5, 16362970), (10, 8181485), (13, 6293450), (25, 3272594), (26, 3146725), (50, 1636297), (65, 1258690), (130, 629345), (191, 428350), (325, 251738), (382, 214175), (650, 125869), (659, 124150), (955, 85670), (1318, 62075), (1910, 42835), (2483, 32950), (3295, 24830), (4775, 17134), (4966, 16475), (6590, 12415), (8567, 9550)]