171055100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:687

約数の個数: 72

約数和(自身を含む): 393568560

約数和(自身を除く): 222513460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 197, 380, 394, 457, 475, 788, 914, 950, 985, 1828, 1900, 1970, 2285, 3743, 3940, 4570, 4925, 7486, 8683, 9140, 9850, 11425, 14972, 17366, 18715, 19700, 22850, 34732, 37430, 43415, 45700, 74860, 86830, 90029, 93575, 173660, 180058, 187150, 217075, 360116, 374300, 434150, 450145, 868300, 900290, 1710551, 1800580, 2250725, 3421102, 4501450, 6842204, 8552755, 9002900, 17105510, 34211020, 42763775, 85527550, 171055100]

約数ペア:

[(1, 171055100), (2, 85527550), (4, 42763775), (5, 34211020), (10, 17105510), (19, 9002900), (20, 8552755), (25, 6842204), (38, 4501450), (50, 3421102), (76, 2250725), (95, 1800580), (100, 1710551), (190, 900290), (197, 868300), (380, 450145), (394, 434150), (457, 374300), (475, 360116), (788, 217075), (914, 187150), (950, 180058), (985, 173660), (1828, 93575), (1900, 90029), (1970, 86830), (2285, 74860), (3743, 45700), (3940, 43415), (4570, 37430), (4925, 34732), (7486, 22850), (8683, 19700), (9140, 18715), (9850, 17366), (11425, 14972)]