30720456

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1427}}^1$

素因数の和:1475

約数の個数: 96

約数和(自身を含む): 93562560

約数和(自身を除く): 62842104

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 23, 24, 26, 36, 39, 46, 52, 69, 72, 78, 92, 104, 117, 138, 156, 184, 207, 234, 276, 299, 312, 414, 468, 552, 598, 828, 897, 936, 1196, 1427, 1656, 1794, 2392, 2691, 2854, 3588, 4281, 5382, 5708, 7176, 8562, 10764, 11416, 12843, 17124, 18551, 21528, 25686, 32821, 34248, 37102, 51372, 55653, 65642, 74204, 98463, 102744, 111306, 131284, 148408, 166959, 196926, 222612, 262568, 295389, 333918, 393852, 426673, 445224, 590778, 667836, 787704, 853346, 1181556, 1280019, 1335672, 1706692, 2363112, 2560038, 3413384, 3840057, 5120076, 7680114, 10240152, 15360228, 30720456]

約数ペア:

[(1, 30720456), (2, 15360228), (3, 10240152), (4, 7680114), (6, 5120076), (8, 3840057), (9, 3413384), (12, 2560038), (13, 2363112), (18, 1706692), (23, 1335672), (24, 1280019), (26, 1181556), (36, 853346), (39, 787704), (46, 667836), (52, 590778), (69, 445224), (72, 426673), (78, 393852), (92, 333918), (104, 295389), (117, 262568), (138, 222612), (156, 196926), (184, 166959), (207, 148408), (234, 131284), (276, 111306), (299, 102744), (312, 98463), (414, 74204), (468, 65642), (552, 55653), (598, 51372), (828, 37102), (897, 34248), (936, 32821), (1196, 25686), (1427, 21528), (1656, 18551), (1794, 17124), (2392, 12843), (2691, 11416), (2854, 10764), (3588, 8562), (4281, 7176), (5382, 5708)]