19997319792

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{138547}}^1$

素因数の和:138686

約数の個数: 80

約数和(自身を含む): 53876329472

約数和(自身を除く): 33879009680

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 97, 124, 186, 194, 248, 291, 372, 388, 496, 582, 744, 776, 1164, 1488, 1552, 2328, 3007, 4656, 6014, 9021, 12028, 18042, 24056, 36084, 48112, 72168, 138547, 144336, 277094, 415641, 554188, 831282, 1108376, 1662564, 2216752, 3325128, 4294957, 6650256, 8589914, 12884871, 13439059, 17179828, 25769742, 26878118, 34359656, 40317177, 51539484, 53756236, 68719312, 80634354, 103078968, 107512472, 161268708, 206157936, 215024944, 322537416, 416610829, 645074832, 833221658, 1249832487, 1666443316, 2499664974, 3332886632, 4999329948, 6665773264, 9998659896, 19997319792]

約数ペア:

[(1, 19997319792), (2, 9998659896), (3, 6665773264), (4, 4999329948), (6, 3332886632), (8, 2499664974), (12, 1666443316), (16, 1249832487), (24, 833221658), (31, 645074832), (48, 416610829), (62, 322537416), (93, 215024944), (97, 206157936), (124, 161268708), (186, 107512472), (194, 103078968), (248, 80634354), (291, 68719312), (372, 53756236), (388, 51539484), (496, 40317177), (582, 34359656), (744, 26878118), (776, 25769742), (1164, 17179828), (1488, 13439059), (1552, 12884871), (2328, 8589914), (3007, 6650256), (4656, 4294957), (6014, 3325128), (9021, 2216752), (12028, 1662564), (18042, 1108376), (24056, 831282), (36084, 554188), (48112, 415641), (72168, 277094), (138547, 144336)]