401519440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:381

約数の個数: 160

約数和(自身を含む): 1117071360

約数和(自身を除く): 715551920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 101, 112, 124, 140, 155, 202, 217, 229, 248, 280, 310, 404, 434, 458, 496, 505, 560, 620, 707, 808, 868, 916, 1010, 1085, 1145, 1240, 1414, 1603, 1616, 1736, 1832, 2020, 2170, 2290, 2480, 2828, 3131, 3206, 3472, 3535, 3664, 4040, 4340, 4580, 5656, 6262, 6412, 7070, 7099, 8015, 8080, 8680, 9160, 11312, 12524, 12824, 14140, 14198, 15655, 16030, 17360, 18320, 21917, 23129, 25048, 25648, 28280, 28396, 31310, 32060, 35495, 43834, 46258, 49693, 50096, 56560, 56792, 62620, 64120, 70990, 87668, 92516, 99386, 109585, 113584, 115645, 125240, 128240, 141980, 161903, 175336, 185032, 198772, 219170, 231290, 248465, 250480, 283960, 323806, 350672, 370064, 397544, 438340, 462580, 496930, 567920, 647612, 716999, 795088, 809515, 876680, 925160, 993860, 1295224, 1433998, 1619030, 1753360, 1850320, 1987720, 2590448, 2867996, 3238060, 3584995, 3975440, 5018993, 5735992, 6476120, 7169990, 10037986, 11471984, 12952240, 14339980, 20075972, 25094965, 28679960, 40151944, 50189930, 57359920, 80303888, 100379860, 200759720, 401519440]

約数ペア:

[(1, 401519440), (2, 200759720), (4, 100379860), (5, 80303888), (7, 57359920), (8, 50189930), (10, 40151944), (14, 28679960), (16, 25094965), (20, 20075972), (28, 14339980), (31, 12952240), (35, 11471984), (40, 10037986), (56, 7169990), (62, 6476120), (70, 5735992), (80, 5018993), (101, 3975440), (112, 3584995), (124, 3238060), (140, 2867996), (155, 2590448), (202, 1987720), (217, 1850320), (229, 1753360), (248, 1619030), (280, 1433998), (310, 1295224), (404, 993860), (434, 925160), (458, 876680), (496, 809515), (505, 795088), (560, 716999), (620, 647612), (707, 567920), (808, 496930), (868, 462580), (916, 438340), (1010, 397544), (1085, 370064), (1145, 350672), (1240, 323806), (1414, 283960), (1603, 250480), (1616, 248465), (1736, 231290), (1832, 219170), (2020, 198772), (2170, 185032), (2290, 175336), (2480, 161903), (2828, 141980), (3131, 128240), (3206, 125240), (3472, 115645), (3535, 113584), (3664, 109585), (4040, 99386), (4340, 92516), (4580, 87668), (5656, 70990), (6262, 64120), (6412, 62620), (7070, 56792), (7099, 56560), (8015, 50096), (8080, 49693), (8680, 46258), (9160, 43834), (11312, 35495), (12524, 32060), (12824, 31310), (14140, 28396), (14198, 28280), (15655, 25648), (16030, 25048), (17360, 23129), (18320, 21917)]