128401840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{6197}}^1$

素因数の和:6254

約数の個数: 80

約数和(自身を含む): 350459712

約数和(自身を除く): 222057872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1036, 1295, 1480, 2072, 2590, 2960, 4144, 5180, 6197, 10360, 12394, 20720, 24788, 30985, 43379, 49576, 61970, 86758, 99152, 123940, 173516, 216895, 229289, 247880, 347032, 433790, 458578, 495760, 694064, 867580, 917156, 1146445, 1605023, 1735160, 1834312, 2292890, 3210046, 3470320, 3668624, 4585780, 6420092, 8025115, 9171560, 12840184, 16050230, 18343120, 25680368, 32100460, 64200920, 128401840]

約数ペア:

[(1, 128401840), (2, 64200920), (4, 32100460), (5, 25680368), (7, 18343120), (8, 16050230), (10, 12840184), (14, 9171560), (16, 8025115), (20, 6420092), (28, 4585780), (35, 3668624), (37, 3470320), (40, 3210046), (56, 2292890), (70, 1834312), (74, 1735160), (80, 1605023), (112, 1146445), (140, 917156), (148, 867580), (185, 694064), (259, 495760), (280, 458578), (296, 433790), (370, 347032), (518, 247880), (560, 229289), (592, 216895), (740, 173516), (1036, 123940), (1295, 99152), (1480, 86758), (2072, 61970), (2590, 49576), (2960, 43379), (4144, 30985), (5180, 24788), (6197, 20720), (10360, 12394)]