20214878460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{35999}}^1$

素因数の和:36216

約数の個数: 144

約数和(自身を含む): 66189312000

約数和(自身を除く): 45974433540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 191, 196, 210, 245, 294, 382, 420, 490, 573, 588, 735, 764, 955, 980, 1146, 1337, 1470, 1910, 2292, 2674, 2865, 2940, 3820, 4011, 5348, 5730, 6685, 8022, 9359, 11460, 13370, 16044, 18718, 20055, 26740, 28077, 35999, 37436, 40110, 46795, 56154, 71998, 80220, 93590, 107997, 112308, 140385, 143996, 179995, 187180, 215994, 251993, 280770, 359990, 431988, 503986, 539985, 561540, 719980, 755979, 1007972, 1079970, 1259965, 1511958, 1763951, 2159940, 2519930, 3023916, 3527902, 3779895, 5039860, 5291853, 6875809, 7055804, 7559790, 8819755, 10583706, 13751618, 15119580, 17639510, 20627427, 21167412, 26459265, 27503236, 34379045, 35279020, 41254854, 48130663, 52918530, 68758090, 82509708, 96261326, 103137135, 105837060, 137516180, 144391989, 192522652, 206274270, 240653315, 288783978, 336914641, 412548540, 481306630, 577567956, 673829282, 721959945, 962613260, 1010743923, 1347658564, 1443919890, 1684573205, 2021487846, 2887839780, 3369146410, 4042975692, 5053719615, 6738292820, 10107439230, 20214878460]

約数ペア:

[(1, 20214878460), (2, 10107439230), (3, 6738292820), (4, 5053719615), (5, 4042975692), (6, 3369146410), (7, 2887839780), (10, 2021487846), (12, 1684573205), (14, 1443919890), (15, 1347658564), (20, 1010743923), (21, 962613260), (28, 721959945), (30, 673829282), (35, 577567956), (42, 481306630), (49, 412548540), (60, 336914641), (70, 288783978), (84, 240653315), (98, 206274270), (105, 192522652), (140, 144391989), (147, 137516180), (191, 105837060), (196, 103137135), (210, 96261326), (245, 82509708), (294, 68758090), (382, 52918530), (420, 48130663), (490, 41254854), (573, 35279020), (588, 34379045), (735, 27503236), (764, 26459265), (955, 21167412), (980, 20627427), (1146, 17639510), (1337, 15119580), (1470, 13751618), (1910, 10583706), (2292, 8819755), (2674, 7559790), (2865, 7055804), (2940, 6875809), (3820, 5291853), (4011, 5039860), (5348, 3779895), (5730, 3527902), (6685, 3023916), (8022, 2519930), (9359, 2159940), (11460, 1763951), (13370, 1511958), (16044, 1259965), (18718, 1079970), (20055, 1007972), (26740, 755979), (28077, 719980), (35999, 561540), (37436, 539985), (40110, 503986), (46795, 431988), (56154, 359990), (71998, 280770), (80220, 251993), (93590, 215994), (107997, 187180), (112308, 179995), (140385, 143996)]