407521660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{233}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 1093030848

約数和(自身を除く): 685509188

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 91, 124, 130, 140, 155, 182, 217, 233, 260, 310, 364, 403, 434, 455, 466, 620, 806, 868, 910, 932, 961, 1085, 1165, 1612, 1631, 1820, 1922, 2015, 2170, 2330, 2821, 3029, 3262, 3844, 4030, 4340, 4660, 4805, 5642, 6058, 6524, 6727, 7223, 8060, 8155, 9610, 11284, 12116, 12493, 13454, 14105, 14446, 15145, 16310, 19220, 21203, 24986, 26908, 28210, 28892, 30290, 32620, 33635, 36115, 42406, 49972, 50561, 56420, 60580, 62465, 67270, 72230, 84812, 87451, 93899, 101122, 106015, 124930, 134540, 144460, 174902, 187798, 202244, 212030, 223913, 249860, 252805, 349804, 375596, 424060, 437255, 447826, 469495, 505610, 657293, 874510, 895652, 938990, 1011220, 1119565, 1314586, 1567391, 1749020, 1877980, 2239130, 2629172, 2910869, 3134782, 3286465, 4478260, 5821738, 6269564, 6572930, 7836955, 11643476, 13145860, 14554345, 15673910, 20376083, 29108690, 31347820, 40752166, 58217380, 81504332, 101880415, 203760830, 407521660]

約数ペア:

[(1, 407521660), (2, 203760830), (4, 101880415), (5, 81504332), (7, 58217380), (10, 40752166), (13, 31347820), (14, 29108690), (20, 20376083), (26, 15673910), (28, 14554345), (31, 13145860), (35, 11643476), (52, 7836955), (62, 6572930), (65, 6269564), (70, 5821738), (91, 4478260), (124, 3286465), (130, 3134782), (140, 2910869), (155, 2629172), (182, 2239130), (217, 1877980), (233, 1749020), (260, 1567391), (310, 1314586), (364, 1119565), (403, 1011220), (434, 938990), (455, 895652), (466, 874510), (620, 657293), (806, 505610), (868, 469495), (910, 447826), (932, 437255), (961, 424060), (1085, 375596), (1165, 349804), (1612, 252805), (1631, 249860), (1820, 223913), (1922, 212030), (2015, 202244), (2170, 187798), (2330, 174902), (2821, 144460), (3029, 134540), (3262, 124930), (3844, 106015), (4030, 101122), (4340, 93899), (4660, 87451), (4805, 84812), (5642, 72230), (6058, 67270), (6524, 62465), (6727, 60580), (7223, 56420), (8060, 50561), (8155, 49972), (9610, 42406), (11284, 36115), (12116, 33635), (12493, 32620), (13454, 30290), (14105, 28892), (14446, 28210), (15145, 26908), (16310, 24986), (19220, 21203)]