199400250

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2045

約数の個数: 128

約数和(自身を含む): 599040000

約数和(自身を除く): 399639750

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 25, 30, 35, 38, 42, 50, 57, 70, 75, 95, 105, 114, 125, 133, 150, 175, 190, 210, 250, 266, 285, 350, 375, 399, 475, 525, 570, 665, 750, 798, 875, 950, 1050, 1330, 1425, 1750, 1995, 1999, 2375, 2625, 2850, 3325, 3990, 3998, 4750, 5250, 5997, 6650, 7125, 9975, 9995, 11994, 13993, 14250, 16625, 19950, 19990, 27986, 29985, 33250, 37981, 41979, 49875, 49975, 59970, 69965, 75962, 83958, 99750, 99950, 113943, 139930, 149925, 189905, 209895, 227886, 249875, 265867, 299850, 349825, 379810, 419790, 499750, 531734, 569715, 699650, 749625, 797601, 949525, 1049475, 1139430, 1329335, 1499250, 1595202, 1749125, 1899050, 2098950, 2658670, 2848575, 3498250, 3988005, 4747625, 5247375, 5697150, 6646675, 7976010, 9495250, 10494750, 13293350, 14242875, 19940025, 28485750, 33233375, 39880050, 66466750, 99700125, 199400250]

約数ペア:

[(1, 199400250), (2, 99700125), (3, 66466750), (5, 39880050), (6, 33233375), (7, 28485750), (10, 19940025), (14, 14242875), (15, 13293350), (19, 10494750), (21, 9495250), (25, 7976010), (30, 6646675), (35, 5697150), (38, 5247375), (42, 4747625), (50, 3988005), (57, 3498250), (70, 2848575), (75, 2658670), (95, 2098950), (105, 1899050), (114, 1749125), (125, 1595202), (133, 1499250), (150, 1329335), (175, 1139430), (190, 1049475), (210, 949525), (250, 797601), (266, 749625), (285, 699650), (350, 569715), (375, 531734), (399, 499750), (475, 419790), (525, 379810), (570, 349825), (665, 299850), (750, 265867), (798, 249875), (875, 227886), (950, 209895), (1050, 189905), (1330, 149925), (1425, 139930), (1750, 113943), (1995, 99950), (1999, 99750), (2375, 83958), (2625, 75962), (2850, 69965), (3325, 59970), (3990, 49975), (3998, 49875), (4750, 41979), (5250, 37981), (5997, 33250), (6650, 29985), (7125, 27986), (9975, 19990), (9995, 19950), (11994, 16625), (13993, 14250)]