291211560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:316

約数の個数: 192

約数和(自身を含む): 979290000

約数和(自身を除く): 688078440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 61, 72, 89, 90, 120, 122, 149, 178, 180, 183, 244, 267, 298, 305, 356, 360, 366, 445, 447, 488, 534, 549, 596, 610, 712, 732, 745, 801, 890, 894, 915, 1068, 1098, 1192, 1220, 1335, 1341, 1464, 1490, 1602, 1780, 1788, 1830, 2136, 2196, 2235, 2440, 2670, 2682, 2745, 2980, 3204, 3560, 3576, 3660, 4005, 4392, 4470, 5340, 5364, 5429, 5490, 5960, 6408, 6705, 7320, 8010, 8940, 9089, 10680, 10728, 10858, 10980, 13261, 13410, 16020, 16287, 17880, 18178, 21716, 21960, 26522, 26820, 27145, 27267, 32040, 32574, 36356, 39783, 43432, 45445, 48861, 53044, 53640, 54290, 54534, 65148, 66305, 72712, 79566, 81435, 81801, 90890, 97722, 106088, 108580, 109068, 119349, 130296, 132610, 136335, 159132, 162870, 163602, 181780, 195444, 198915, 217160, 218136, 238698, 244305, 265220, 272670, 318264, 325740, 327204, 363560, 390888, 397830, 409005, 477396, 488610, 530440, 545340, 596745, 651480, 654408, 795660, 808921, 818010, 954792, 977220, 1090680, 1193490, 1591320, 1617842, 1636020, 1954440, 2386980, 2426763, 3235684, 3272040, 4044605, 4773960, 4853526, 6471368, 7280289, 8089210, 9707052, 12133815, 14560578, 16178420, 19414104, 24267630, 29121156, 32356840, 36401445, 48535260, 58242312, 72802890, 97070520, 145605780, 291211560]

約数ペア:

[(1, 291211560), (2, 145605780), (3, 97070520), (4, 72802890), (5, 58242312), (6, 48535260), (8, 36401445), (9, 32356840), (10, 29121156), (12, 24267630), (15, 19414104), (18, 16178420), (20, 14560578), (24, 12133815), (30, 9707052), (36, 8089210), (40, 7280289), (45, 6471368), (60, 4853526), (61, 4773960), (72, 4044605), (89, 3272040), (90, 3235684), (120, 2426763), (122, 2386980), (149, 1954440), (178, 1636020), (180, 1617842), (183, 1591320), (244, 1193490), (267, 1090680), (298, 977220), (305, 954792), (356, 818010), (360, 808921), (366, 795660), (445, 654408), (447, 651480), (488, 596745), (534, 545340), (549, 530440), (596, 488610), (610, 477396), (712, 409005), (732, 397830), (745, 390888), (801, 363560), (890, 327204), (894, 325740), (915, 318264), (1068, 272670), (1098, 265220), (1192, 244305), (1220, 238698), (1335, 218136), (1341, 217160), (1464, 198915), (1490, 195444), (1602, 181780), (1780, 163602), (1788, 162870), (1830, 159132), (2136, 136335), (2196, 132610), (2235, 130296), (2440, 119349), (2670, 109068), (2682, 108580), (2745, 106088), (2980, 97722), (3204, 90890), (3560, 81801), (3576, 81435), (3660, 79566), (4005, 72712), (4392, 66305), (4470, 65148), (5340, 54534), (5364, 54290), (5429, 53640), (5490, 53044), (5960, 48861), (6408, 45445), (6705, 43432), (7320, 39783), (8010, 36356), (8940, 32574), (9089, 32040), (10680, 27267), (10728, 27145), (10858, 26820), (10980, 26522), (13261, 21960), (13410, 21716), (16020, 18178), (16287, 17880)]