27758655

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 50544000

約数和(自身を除く): 22785345

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 89, 145, 239, 261, 267, 435, 445, 717, 801, 1195, 1305, 1335, 2151, 2581, 3585, 4005, 6931, 7743, 10755, 12905, 20793, 21271, 23229, 34655, 38715, 62379, 63813, 103965, 106355, 116145, 191439, 311895, 319065, 616859, 957195, 1850577, 3084295, 5551731, 9252885, 27758655]

約数ペア:

[(1, 27758655), (3, 9252885), (5, 5551731), (9, 3084295), (15, 1850577), (29, 957195), (45, 616859), (87, 319065), (89, 311895), (145, 191439), (239, 116145), (261, 106355), (267, 103965), (435, 63813), (445, 62379), (717, 38715), (801, 34655), (1195, 23229), (1305, 21271), (1335, 20793), (2151, 12905), (2581, 10755), (3585, 7743), (4005, 6931)]