28863980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 62808480

約数和(自身を除く): 33944500

約数列:

[1, 2, 4, 5, 10, 20, 59, 61, 118, 122, 236, 244, 295, 305, 401, 590, 610, 802, 1180, 1220, 1604, 2005, 3599, 4010, 7198, 8020, 14396, 17995, 23659, 24461, 35990, 47318, 48922, 71980, 94636, 97844, 118295, 122305, 236590, 244610, 473180, 489220, 1443199, 2886398, 5772796, 7215995, 14431990, 28863980]

約数ペア:

[(1, 28863980), (2, 14431990), (4, 7215995), (5, 5772796), (10, 2886398), (20, 1443199), (59, 489220), (61, 473180), (118, 244610), (122, 236590), (236, 122305), (244, 118295), (295, 97844), (305, 94636), (401, 71980), (590, 48922), (610, 47318), (802, 35990), (1180, 24461), (1220, 23659), (1604, 17995), (2005, 14396), (3599, 8020), (4010, 7198)]