20166440980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{2659}}^1$

素因数の和:2862

約数の個数: 144

約数和(自身を含む): 50434876800

約数和(自身を除く): 30268435820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 109, 140, 142, 196, 218, 245, 284, 355, 436, 490, 497, 545, 710, 763, 980, 994, 1090, 1420, 1526, 1988, 2180, 2485, 2659, 3052, 3479, 3815, 4970, 5318, 5341, 6958, 7630, 7739, 9940, 10636, 10682, 13295, 13916, 15260, 15478, 17395, 18613, 21364, 26590, 26705, 30956, 34790, 37226, 38695, 53180, 53410, 54173, 69580, 74452, 77390, 93065, 106820, 108346, 130291, 154780, 186130, 188789, 216692, 260582, 270865, 289831, 372260, 377578, 379211, 521164, 541730, 579662, 651455, 755156, 758422, 943945, 1083460, 1159324, 1302910, 1321523, 1449155, 1516844, 1887890, 1896055, 2028817, 2605820, 2643046, 2898310, 3775780, 3792110, 4057634, 5286092, 5796620, 6607615, 7584220, 8115268, 9250661, 10144085, 13215230, 14201719, 18501322, 20288170, 20578001, 26430460, 28403438, 37002644, 40576340, 41156002, 46253305, 56806876, 71008595, 82312004, 92506610, 102890005, 142017190, 144046007, 185013220, 205780010, 284034380, 288092014, 411560020, 576184028, 720230035, 1008322049, 1440460070, 2016644098, 2880920140, 4033288196, 5041610245, 10083220490, 20166440980]

約数ペア:

[(1, 20166440980), (2, 10083220490), (4, 5041610245), (5, 4033288196), (7, 2880920140), (10, 2016644098), (14, 1440460070), (20, 1008322049), (28, 720230035), (35, 576184028), (49, 411560020), (70, 288092014), (71, 284034380), (98, 205780010), (109, 185013220), (140, 144046007), (142, 142017190), (196, 102890005), (218, 92506610), (245, 82312004), (284, 71008595), (355, 56806876), (436, 46253305), (490, 41156002), (497, 40576340), (545, 37002644), (710, 28403438), (763, 26430460), (980, 20578001), (994, 20288170), (1090, 18501322), (1420, 14201719), (1526, 13215230), (1988, 10144085), (2180, 9250661), (2485, 8115268), (2659, 7584220), (3052, 6607615), (3479, 5796620), (3815, 5286092), (4970, 4057634), (5318, 3792110), (5341, 3775780), (6958, 2898310), (7630, 2643046), (7739, 2605820), (9940, 2028817), (10636, 1896055), (10682, 1887890), (13295, 1516844), (13916, 1449155), (15260, 1321523), (15478, 1302910), (17395, 1159324), (18613, 1083460), (21364, 943945), (26590, 758422), (26705, 755156), (30956, 651455), (34790, 579662), (37226, 541730), (38695, 521164), (53180, 379211), (53410, 377578), (54173, 372260), (69580, 289831), (74452, 270865), (77390, 260582), (93065, 216692), (106820, 188789), (108346, 186130), (130291, 154780)]