28360120

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 66290400

約数和(自身を除く): 37930280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 61, 118, 122, 197, 236, 244, 295, 305, 394, 472, 488, 590, 610, 788, 985, 1180, 1220, 1576, 1970, 2360, 2440, 3599, 3940, 7198, 7880, 11623, 12017, 14396, 17995, 23246, 24034, 28792, 35990, 46492, 48068, 58115, 60085, 71980, 92984, 96136, 116230, 120170, 143960, 232460, 240340, 464920, 480680, 709003, 1418006, 2836012, 3545015, 5672024, 7090030, 14180060, 28360120]

約数ペア:

[(1, 28360120), (2, 14180060), (4, 7090030), (5, 5672024), (8, 3545015), (10, 2836012), (20, 1418006), (40, 709003), (59, 480680), (61, 464920), (118, 240340), (122, 232460), (197, 143960), (236, 120170), (244, 116230), (295, 96136), (305, 92984), (394, 71980), (472, 60085), (488, 58115), (590, 48068), (610, 46492), (788, 35990), (985, 28792), (1180, 24034), (1220, 23246), (1576, 17995), (1970, 14396), (2360, 12017), (2440, 11623), (3599, 7880), (3940, 7198)]