28405416

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{503}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 77051520

約数和(自身を除く): 48646104

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 181, 312, 362, 503, 543, 724, 1006, 1086, 1448, 1509, 2012, 2172, 2353, 3018, 4024, 4344, 4706, 6036, 6539, 7059, 9412, 12072, 13078, 14118, 18824, 19617, 26156, 28236, 39234, 52312, 56472, 78468, 91043, 156936, 182086, 273129, 364172, 546258, 728344, 1092516, 1183559, 2185032, 2367118, 3550677, 4734236, 7101354, 9468472, 14202708, 28405416]

約数ペア:

[(1, 28405416), (2, 14202708), (3, 9468472), (4, 7101354), (6, 4734236), (8, 3550677), (12, 2367118), (13, 2185032), (24, 1183559), (26, 1092516), (39, 728344), (52, 546258), (78, 364172), (104, 273129), (156, 182086), (181, 156936), (312, 91043), (362, 78468), (503, 56472), (543, 52312), (724, 39234), (1006, 28236), (1086, 26156), (1448, 19617), (1509, 18824), (2012, 14118), (2172, 13078), (2353, 12072), (3018, 9412), (4024, 7059), (4344, 6539), (4706, 6036)]