28687815

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 58968000

約数和(自身を除く): 30280185

約数列:

[1, 3, 5, 9, 13, 15, 19, 29, 39, 45, 57, 65, 87, 89, 95, 117, 145, 171, 195, 247, 261, 267, 285, 377, 435, 445, 551, 585, 741, 801, 855, 1131, 1157, 1235, 1305, 1335, 1653, 1691, 1885, 2223, 2581, 2755, 3393, 3471, 3705, 4005, 4959, 5073, 5655, 5785, 7163, 7743, 8265, 8455, 10413, 11115, 12905, 15219, 16965, 17355, 21489, 21983, 23229, 24795, 25365, 33553, 35815, 38715, 49039, 52065, 64467, 65949, 76095, 100659, 107445, 109915, 116145, 147117, 167765, 197847, 245195, 301977, 322335, 329745, 441351, 503295, 637507, 735585, 989235, 1509885, 1912521, 2206755, 3187535, 5737563, 9562605, 28687815]

約数ペア:

[(1, 28687815), (3, 9562605), (5, 5737563), (9, 3187535), (13, 2206755), (15, 1912521), (19, 1509885), (29, 989235), (39, 735585), (45, 637507), (57, 503295), (65, 441351), (87, 329745), (89, 322335), (95, 301977), (117, 245195), (145, 197847), (171, 167765), (195, 147117), (247, 116145), (261, 109915), (267, 107445), (285, 100659), (377, 76095), (435, 65949), (445, 64467), (551, 52065), (585, 49039), (741, 38715), (801, 35815), (855, 33553), (1131, 25365), (1157, 24795), (1235, 23229), (1305, 21983), (1335, 21489), (1653, 17355), (1691, 16965), (1885, 15219), (2223, 12905), (2581, 11115), (2755, 10413), (3393, 8455), (3471, 8265), (3705, 7743), (4005, 7163), (4959, 5785), (5073, 5655)]