1661281320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{7321}}^1$

素因数の和:7427

約数の個数: 128

約数和(自身を含む): 5229665280

約数和(自身を除く): 3568383960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 61, 62, 93, 120, 122, 124, 155, 183, 186, 244, 248, 305, 310, 366, 372, 465, 488, 610, 620, 732, 744, 915, 930, 1220, 1240, 1464, 1830, 1860, 1891, 2440, 3660, 3720, 3782, 5673, 7320, 7321, 7564, 9455, 11346, 14642, 15128, 18910, 21963, 22692, 28365, 29284, 36605, 37820, 43926, 45384, 56730, 58568, 73210, 75640, 87852, 109815, 113460, 146420, 175704, 219630, 226920, 226951, 292840, 439260, 446581, 453902, 680853, 878520, 893162, 907804, 1134755, 1339743, 1361706, 1786324, 1815608, 2232905, 2269510, 2679486, 2723412, 3404265, 3572648, 4465810, 4539020, 5358972, 5446824, 6698715, 6808530, 8931620, 9078040, 10717944, 13397430, 13617060, 13844011, 17863240, 26794860, 27234120, 27688022, 41532033, 53589720, 55376044, 69220055, 83064066, 110752088, 138440110, 166128132, 207660165, 276880220, 332256264, 415320330, 553760440, 830640660, 1661281320]

約数ペア:

[(1, 1661281320), (2, 830640660), (3, 553760440), (4, 415320330), (5, 332256264), (6, 276880220), (8, 207660165), (10, 166128132), (12, 138440110), (15, 110752088), (20, 83064066), (24, 69220055), (30, 55376044), (31, 53589720), (40, 41532033), (60, 27688022), (61, 27234120), (62, 26794860), (93, 17863240), (120, 13844011), (122, 13617060), (124, 13397430), (155, 10717944), (183, 9078040), (186, 8931620), (244, 6808530), (248, 6698715), (305, 5446824), (310, 5358972), (366, 4539020), (372, 4465810), (465, 3572648), (488, 3404265), (610, 2723412), (620, 2679486), (732, 2269510), (744, 2232905), (915, 1815608), (930, 1786324), (1220, 1361706), (1240, 1339743), (1464, 1134755), (1830, 907804), (1860, 893162), (1891, 878520), (2440, 680853), (3660, 453902), (3720, 446581), (3782, 439260), (5673, 292840), (7320, 226951), (7321, 226920), (7564, 219630), (9455, 175704), (11346, 146420), (14642, 113460), (15128, 109815), (18910, 87852), (21963, 75640), (22692, 73210), (28365, 58568), (29284, 56730), (36605, 45384), (37820, 43926)]