218358420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{541}}^1$

素因数の和:622

約数の個数: 144

約数和(自身を含む): 723348864

約数和(自身を除く): 504990444

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 541, 620, 651, 868, 930, 961, 1082, 1085, 1302, 1623, 1860, 1922, 2164, 2170, 2604, 2705, 2883, 3246, 3255, 3787, 3844, 4340, 4805, 5410, 5766, 6492, 6510, 6727, 7574, 8115, 9610, 10820, 11361, 11532, 13020, 13454, 14415, 15148, 16230, 16771, 18935, 19220, 20181, 22722, 26908, 28830, 32460, 33542, 33635, 37870, 40362, 45444, 50313, 56805, 57660, 67084, 67270, 75740, 80724, 83855, 100626, 100905, 113610, 117397, 134540, 167710, 201252, 201810, 227220, 234794, 251565, 335420, 352191, 403620, 469588, 503130, 519901, 586985, 704382, 1006260, 1039802, 1173970, 1408764, 1559703, 1760955, 2079604, 2347940, 2599505, 3119406, 3521910, 3639307, 5199010, 6238812, 7043820, 7278614, 7798515, 10398020, 10917921, 14557228, 15597030, 18196535, 21835842, 31194060, 36393070, 43671684, 54589605, 72786140, 109179210, 218358420]

約数ペア:

[(1, 218358420), (2, 109179210), (3, 72786140), (4, 54589605), (5, 43671684), (6, 36393070), (7, 31194060), (10, 21835842), (12, 18196535), (14, 15597030), (15, 14557228), (20, 10917921), (21, 10398020), (28, 7798515), (30, 7278614), (31, 7043820), (35, 6238812), (42, 5199010), (60, 3639307), (62, 3521910), (70, 3119406), (84, 2599505), (93, 2347940), (105, 2079604), (124, 1760955), (140, 1559703), (155, 1408764), (186, 1173970), (210, 1039802), (217, 1006260), (310, 704382), (372, 586985), (420, 519901), (434, 503130), (465, 469588), (541, 403620), (620, 352191), (651, 335420), (868, 251565), (930, 234794), (961, 227220), (1082, 201810), (1085, 201252), (1302, 167710), (1623, 134540), (1860, 117397), (1922, 113610), (2164, 100905), (2170, 100626), (2604, 83855), (2705, 80724), (2883, 75740), (3246, 67270), (3255, 67084), (3787, 57660), (3844, 56805), (4340, 50313), (4805, 45444), (5410, 40362), (5766, 37870), (6492, 33635), (6510, 33542), (6727, 32460), (7574, 28830), (8115, 26908), (9610, 22722), (10820, 20181), (11361, 19220), (11532, 18935), (13020, 16771), (13454, 16230), (14415, 15148)]