231878780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 603288000

約数和(自身を除く): 371409220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 41, 49, 58, 70, 82, 98, 116, 140, 145, 164, 196, 199, 203, 205, 245, 287, 290, 398, 406, 410, 490, 574, 580, 796, 812, 820, 980, 995, 1015, 1148, 1189, 1393, 1421, 1435, 1990, 2009, 2030, 2378, 2786, 2842, 2870, 3980, 4018, 4060, 4756, 5572, 5684, 5740, 5771, 5945, 6965, 7105, 8036, 8159, 8323, 9751, 10045, 11542, 11890, 13930, 14210, 16318, 16646, 19502, 20090, 23084, 23780, 27860, 28420, 28855, 32636, 33292, 39004, 40180, 40397, 40795, 41615, 48755, 57113, 57710, 58261, 80794, 81590, 83230, 97510, 114226, 115420, 116522, 161588, 163180, 166460, 195020, 201985, 228452, 233044, 236611, 282779, 285565, 291305, 399791, 403970, 473222, 565558, 571130, 582610, 799582, 807940, 946444, 1131116, 1142260, 1165220, 1183055, 1413895, 1599164, 1656277, 1998955, 2366110, 2827790, 3312554, 3997910, 4732220, 5655580, 6625108, 7995820, 8281385, 11593939, 16562770, 23187878, 33125540, 46375756, 57969695, 115939390, 231878780]

約数ペア:

[(1, 231878780), (2, 115939390), (4, 57969695), (5, 46375756), (7, 33125540), (10, 23187878), (14, 16562770), (20, 11593939), (28, 8281385), (29, 7995820), (35, 6625108), (41, 5655580), (49, 4732220), (58, 3997910), (70, 3312554), (82, 2827790), (98, 2366110), (116, 1998955), (140, 1656277), (145, 1599164), (164, 1413895), (196, 1183055), (199, 1165220), (203, 1142260), (205, 1131116), (245, 946444), (287, 807940), (290, 799582), (398, 582610), (406, 571130), (410, 565558), (490, 473222), (574, 403970), (580, 399791), (796, 291305), (812, 285565), (820, 282779), (980, 236611), (995, 233044), (1015, 228452), (1148, 201985), (1189, 195020), (1393, 166460), (1421, 163180), (1435, 161588), (1990, 116522), (2009, 115420), (2030, 114226), (2378, 97510), (2786, 83230), (2842, 81590), (2870, 80794), (3980, 58261), (4018, 57710), (4060, 57113), (4756, 48755), (5572, 41615), (5684, 40795), (5740, 40397), (5771, 40180), (5945, 39004), (6965, 33292), (7105, 32636), (8036, 28855), (8159, 28420), (8323, 27860), (9751, 23780), (10045, 23084), (11542, 20090), (11890, 19502), (13930, 16646), (14210, 16318)]