20321370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 96

約数和(自身を含む): 55598400

約数和(自身を除く): 35277030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 59, 86, 89, 90, 118, 129, 177, 178, 215, 258, 267, 295, 354, 387, 430, 445, 531, 534, 590, 645, 774, 801, 885, 890, 1062, 1290, 1335, 1602, 1770, 1935, 2537, 2655, 2670, 3827, 3870, 4005, 5074, 5251, 5310, 7611, 7654, 8010, 10502, 11481, 12685, 15222, 15753, 19135, 22833, 22962, 25370, 26255, 31506, 34443, 38055, 38270, 45666, 47259, 52510, 57405, 68886, 76110, 78765, 94518, 114165, 114810, 157530, 172215, 225793, 228330, 236295, 344430, 451586, 472590, 677379, 1128965, 1354758, 2032137, 2257930, 3386895, 4064274, 6773790, 10160685, 20321370]

約数ペア:

[(1, 20321370), (2, 10160685), (3, 6773790), (5, 4064274), (6, 3386895), (9, 2257930), (10, 2032137), (15, 1354758), (18, 1128965), (30, 677379), (43, 472590), (45, 451586), (59, 344430), (86, 236295), (89, 228330), (90, 225793), (118, 172215), (129, 157530), (177, 114810), (178, 114165), (215, 94518), (258, 78765), (267, 76110), (295, 68886), (354, 57405), (387, 52510), (430, 47259), (445, 45666), (531, 38270), (534, 38055), (590, 34443), (645, 31506), (774, 26255), (801, 25370), (885, 22962), (890, 22833), (1062, 19135), (1290, 15753), (1335, 15222), (1602, 12685), (1770, 11481), (1935, 10502), (2537, 8010), (2655, 7654), (2670, 7611), (3827, 5310), (3870, 5251), (4005, 5074)]