21515290320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{518191}}^1$

素因数の和:518380

約数の個数: 80

約数和(自身を含む): 67083063552

約数和(自身を除く): 45567773232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 173, 240, 346, 519, 692, 865, 1038, 1384, 1730, 2076, 2595, 2768, 3460, 4152, 5190, 6920, 8304, 10380, 13840, 20760, 41520, 518191, 1036382, 1554573, 2072764, 2590955, 3109146, 4145528, 5181910, 6218292, 7772865, 8291056, 10363820, 12436584, 15545730, 20727640, 24873168, 31091460, 41455280, 62182920, 89647043, 124365840, 179294086, 268941129, 358588172, 448235215, 537882258, 717176344, 896470430, 1075764516, 1344705645, 1434352688, 1792940860, 2151529032, 2689411290, 3585881720, 4303058064, 5378822580, 7171763440, 10757645160, 21515290320]

約数ペア:

[(1, 21515290320), (2, 10757645160), (3, 7171763440), (4, 5378822580), (5, 4303058064), (6, 3585881720), (8, 2689411290), (10, 2151529032), (12, 1792940860), (15, 1434352688), (16, 1344705645), (20, 1075764516), (24, 896470430), (30, 717176344), (40, 537882258), (48, 448235215), (60, 358588172), (80, 268941129), (120, 179294086), (173, 124365840), (240, 89647043), (346, 62182920), (519, 41455280), (692, 31091460), (865, 24873168), (1038, 20727640), (1384, 15545730), (1730, 12436584), (2076, 10363820), (2595, 8291056), (2768, 7772865), (3460, 6218292), (4152, 5181910), (5190, 4145528), (6920, 3109146), (8304, 2590955), (10380, 2072764), (13840, 1554573), (20760, 1036382), (41520, 518191)]