28672995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 24549405

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 71, 95, 109, 195, 213, 247, 285, 327, 355, 545, 741, 923, 1065, 1235, 1349, 1417, 1635, 2071, 2769, 3705, 4047, 4251, 4615, 6213, 6745, 7085, 7739, 10355, 13845, 17537, 20235, 21255, 23217, 26923, 31065, 38695, 52611, 80769, 87685, 100607, 116085, 134615, 147041, 263055, 301821, 403845, 441123, 503035, 735205, 1509105, 1911533, 2205615, 5734599, 9557665, 28672995]

約数ペア:

[(1, 28672995), (3, 9557665), (5, 5734599), (13, 2205615), (15, 1911533), (19, 1509105), (39, 735205), (57, 503035), (65, 441123), (71, 403845), (95, 301821), (109, 263055), (195, 147041), (213, 134615), (247, 116085), (285, 100607), (327, 87685), (355, 80769), (545, 52611), (741, 38695), (923, 31065), (1065, 26923), (1235, 23217), (1349, 21255), (1417, 20235), (1635, 17537), (2071, 13845), (2769, 10355), (3705, 7739), (4047, 7085), (4251, 6745), (4615, 6213)]