644278784

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{74021}}^1$

素因数の和:74056

約数の個数: 40

約数和(自身を含む): 1363041108

約数和(自身を除く): 718762324

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1088, 2176, 4352, 8704, 74021, 148042, 296084, 592168, 1184336, 1258357, 2368672, 2516714, 4737344, 5033428, 9474688, 10066856, 18949376, 20133712, 37898752, 40267424, 80534848, 161069696, 322139392, 644278784]

約数ペア:

[(1, 644278784), (2, 322139392), (4, 161069696), (8, 80534848), (16, 40267424), (17, 37898752), (32, 20133712), (34, 18949376), (64, 10066856), (68, 9474688), (128, 5033428), (136, 4737344), (256, 2516714), (272, 2368672), (512, 1258357), (544, 1184336), (1088, 592168), (2176, 296084), (4352, 148042), (8704, 74021)]