71472870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{853}}^1$

素因数の和:899

約数の個数: 144

約数和(自身を含む): 227813040

約数和(自身を除く): 156340170

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 49, 57, 63, 70, 90, 95, 98, 105, 114, 126, 133, 147, 171, 190, 210, 245, 266, 285, 294, 315, 342, 399, 441, 490, 570, 630, 665, 735, 798, 853, 855, 882, 931, 1197, 1330, 1470, 1706, 1710, 1862, 1995, 2205, 2394, 2559, 2793, 3990, 4265, 4410, 4655, 5118, 5586, 5971, 5985, 7677, 8379, 8530, 9310, 11942, 11970, 12795, 13965, 15354, 16207, 16758, 17913, 25590, 27930, 29855, 32414, 35826, 38385, 41797, 41895, 48621, 53739, 59710, 76770, 81035, 83594, 83790, 89565, 97242, 107478, 113449, 125391, 145863, 162070, 179130, 208985, 226898, 243105, 250782, 268695, 291726, 340347, 376173, 417970, 486210, 537390, 567245, 626955, 680694, 729315, 752346, 794143, 1021041, 1134490, 1253910, 1458630, 1588286, 1701735, 1880865, 2042082, 2382429, 3403470, 3761730, 3970715, 4764858, 5105205, 7147287, 7941430, 10210410, 11912145, 14294574, 23824290, 35736435, 71472870]

約数ペア:

[(1, 71472870), (2, 35736435), (3, 23824290), (5, 14294574), (6, 11912145), (7, 10210410), (9, 7941430), (10, 7147287), (14, 5105205), (15, 4764858), (18, 3970715), (19, 3761730), (21, 3403470), (30, 2382429), (35, 2042082), (38, 1880865), (42, 1701735), (45, 1588286), (49, 1458630), (57, 1253910), (63, 1134490), (70, 1021041), (90, 794143), (95, 752346), (98, 729315), (105, 680694), (114, 626955), (126, 567245), (133, 537390), (147, 486210), (171, 417970), (190, 376173), (210, 340347), (245, 291726), (266, 268695), (285, 250782), (294, 243105), (315, 226898), (342, 208985), (399, 179130), (441, 162070), (490, 145863), (570, 125391), (630, 113449), (665, 107478), (735, 97242), (798, 89565), (853, 83790), (855, 83594), (882, 81035), (931, 76770), (1197, 59710), (1330, 53739), (1470, 48621), (1706, 41895), (1710, 41797), (1862, 38385), (1995, 35826), (2205, 32414), (2394, 29855), (2559, 27930), (2793, 25590), (3990, 17913), (4265, 16758), (4410, 16207), (4655, 15354), (5118, 13965), (5586, 12795), (5971, 11970), (5985, 11942), (7677, 9310), (8379, 8530)]