210001181900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{278849}}^1$

素因数の和:279323

約数の個数: 72

約数和(自身を含む): 483599516400

約数和(自身を除く): 273598334500

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 443, 850, 886, 1700, 1772, 2215, 4430, 7531, 8860, 11075, 15062, 22150, 30124, 37655, 44300, 75310, 150620, 188275, 278849, 376550, 557698, 753100, 1115396, 1394245, 2788490, 4740433, 5576980, 6971225, 9480866, 13942450, 18961732, 23702165, 27884900, 47404330, 94808660, 118510825, 123530107, 237021650, 247060214, 474043300, 494120428, 617650535, 1235301070, 2100011819, 2470602140, 3088252675, 4200023638, 6176505350, 8400047276, 10500059095, 12353010700, 21000118190, 42000236380, 52500295475, 105000590950, 210001181900]

約数ペア:

[(1, 210001181900), (2, 105000590950), (4, 52500295475), (5, 42000236380), (10, 21000118190), (17, 12353010700), (20, 10500059095), (25, 8400047276), (34, 6176505350), (50, 4200023638), (68, 3088252675), (85, 2470602140), (100, 2100011819), (170, 1235301070), (340, 617650535), (425, 494120428), (443, 474043300), (850, 247060214), (886, 237021650), (1700, 123530107), (1772, 118510825), (2215, 94808660), (4430, 47404330), (7531, 27884900), (8860, 23702165), (11075, 18961732), (15062, 13942450), (22150, 9480866), (30124, 6971225), (37655, 5576980), (44300, 4740433), (75310, 2788490), (150620, 1394245), (188275, 1115396), (278849, 753100), (376550, 557698)]