1988568470

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:227

約数の個数: 144

約数和(自身を含む): 4450197024

約数和(自身を除く): 2461628554

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 41, 49, 62, 70, 82, 98, 103, 155, 205, 206, 217, 245, 287, 310, 410, 434, 490, 515, 574, 721, 961, 1030, 1085, 1271, 1435, 1442, 1519, 1922, 2009, 2170, 2542, 2870, 3038, 3193, 3605, 4018, 4223, 4805, 5047, 6355, 6386, 6727, 7210, 7595, 8446, 8897, 9610, 10045, 10094, 12710, 13454, 15190, 15965, 17794, 20090, 21115, 22351, 25235, 29561, 31930, 33635, 39401, 42230, 44485, 44702, 47089, 50470, 59122, 62279, 67270, 78802, 88970, 94178, 98983, 111755, 124558, 130913, 147805, 156457, 197005, 197966, 206927, 223510, 235445, 261826, 275807, 295610, 311395, 312914, 394010, 413854, 470890, 494915, 551614, 622790, 654565, 692881, 782285, 916391, 989830, 1034635, 1309130, 1379035, 1385762, 1564570, 1832782, 1930649, 2069270, 2758070, 3464405, 3861298, 4058303, 4581955, 4850167, 6414737, 6928810, 8116606, 9163910, 9653245, 9700334, 12829474, 19306490, 20291515, 24250835, 28408121, 32073685, 40583030, 48501670, 56816242, 64147370, 142040605, 198856847, 284081210, 397713694, 994284235, 1988568470]

約数ペア:

[(1, 1988568470), (2, 994284235), (5, 397713694), (7, 284081210), (10, 198856847), (14, 142040605), (31, 64147370), (35, 56816242), (41, 48501670), (49, 40583030), (62, 32073685), (70, 28408121), (82, 24250835), (98, 20291515), (103, 19306490), (155, 12829474), (205, 9700334), (206, 9653245), (217, 9163910), (245, 8116606), (287, 6928810), (310, 6414737), (410, 4850167), (434, 4581955), (490, 4058303), (515, 3861298), (574, 3464405), (721, 2758070), (961, 2069270), (1030, 1930649), (1085, 1832782), (1271, 1564570), (1435, 1385762), (1442, 1379035), (1519, 1309130), (1922, 1034635), (2009, 989830), (2170, 916391), (2542, 782285), (2870, 692881), (3038, 654565), (3193, 622790), (3605, 551614), (4018, 494915), (4223, 470890), (4805, 413854), (5047, 394010), (6355, 312914), (6386, 311395), (6727, 295610), (7210, 275807), (7595, 261826), (8446, 235445), (8897, 223510), (9610, 206927), (10045, 197966), (10094, 197005), (12710, 156457), (13454, 147805), (15190, 130913), (15965, 124558), (17794, 111755), (20090, 98983), (21115, 94178), (22351, 88970), (25235, 78802), (29561, 67270), (31930, 62279), (33635, 59122), (39401, 50470), (42230, 47089), (44485, 44702)]