25624880

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:222

約数の個数: 80

約数和(自身を含む): 62272800

約数和(自身を除く): 36647920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 61, 80, 89, 118, 122, 178, 236, 244, 295, 305, 356, 445, 472, 488, 590, 610, 712, 890, 944, 976, 1180, 1220, 1424, 1780, 2360, 2440, 3560, 3599, 4720, 4880, 5251, 5429, 7120, 7198, 10502, 10858, 14396, 17995, 21004, 21716, 26255, 27145, 28792, 35990, 42008, 43432, 52510, 54290, 57584, 71980, 84016, 86864, 105020, 108580, 143960, 210040, 217160, 287920, 320311, 420080, 434320, 640622, 1281244, 1601555, 2562488, 3203110, 5124976, 6406220, 12812440, 25624880]

約数ペア:

[(1, 25624880), (2, 12812440), (4, 6406220), (5, 5124976), (8, 3203110), (10, 2562488), (16, 1601555), (20, 1281244), (40, 640622), (59, 434320), (61, 420080), (80, 320311), (89, 287920), (118, 217160), (122, 210040), (178, 143960), (236, 108580), (244, 105020), (295, 86864), (305, 84016), (356, 71980), (445, 57584), (472, 54290), (488, 52510), (590, 43432), (610, 42008), (712, 35990), (890, 28792), (944, 27145), (976, 26255), (1180, 21716), (1220, 21004), (1424, 17995), (1780, 14396), (2360, 10858), (2440, 10502), (3560, 7198), (3599, 7120), (4720, 5429), (4880, 5251)]