49989940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 142644096

約数和(自身を除く): 92654156

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 121, 130, 140, 143, 154, 182, 220, 227, 242, 260, 286, 308, 364, 385, 454, 455, 484, 572, 605, 715, 770, 847, 908, 910, 1001, 1135, 1210, 1430, 1540, 1573, 1589, 1694, 1820, 2002, 2270, 2420, 2497, 2860, 2951, 3146, 3178, 3388, 4004, 4235, 4540, 4994, 5005, 5902, 6292, 6356, 7865, 7945, 8470, 9988, 10010, 11011, 11804, 12485, 14755, 15730, 15890, 16940, 17479, 20020, 20657, 22022, 24970, 27467, 29510, 31460, 31780, 32461, 34958, 41314, 44044, 49940, 54934, 55055, 59020, 64922, 69916, 82628, 87395, 103285, 109868, 110110, 129844, 137335, 162305, 174790, 192269, 206570, 220220, 227227, 274670, 324610, 349580, 357071, 384538, 413140, 454454, 549340, 649220, 714142, 769076, 908908, 961345, 1136135, 1428284, 1785355, 1922690, 2272270, 2499497, 3570710, 3845380, 4544540, 4998994, 7141420, 9997988, 12497485, 24994970, 49989940]

約数ペア:

[(1, 49989940), (2, 24994970), (4, 12497485), (5, 9997988), (7, 7141420), (10, 4998994), (11, 4544540), (13, 3845380), (14, 3570710), (20, 2499497), (22, 2272270), (26, 1922690), (28, 1785355), (35, 1428284), (44, 1136135), (52, 961345), (55, 908908), (65, 769076), (70, 714142), (77, 649220), (91, 549340), (110, 454454), (121, 413140), (130, 384538), (140, 357071), (143, 349580), (154, 324610), (182, 274670), (220, 227227), (227, 220220), (242, 206570), (260, 192269), (286, 174790), (308, 162305), (364, 137335), (385, 129844), (454, 110110), (455, 109868), (484, 103285), (572, 87395), (605, 82628), (715, 69916), (770, 64922), (847, 59020), (908, 55055), (910, 54934), (1001, 49940), (1135, 44044), (1210, 41314), (1430, 34958), (1540, 32461), (1573, 31780), (1589, 31460), (1694, 29510), (1820, 27467), (2002, 24970), (2270, 22022), (2420, 20657), (2497, 20020), (2860, 17479), (2951, 16940), (3146, 15890), (3178, 15730), (3388, 14755), (4004, 12485), (4235, 11804), (4540, 11011), (4994, 10010), (5005, 9988), (5902, 8470), (6292, 7945), (6356, 7865)]