649012480

素因数分解:

$2^8\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1871}}^1$

素因数の和:2163

約数の個数: 72

約数和(自身を含む): 1561158144

約数和(自身を除く): 912145664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 271, 320, 542, 640, 1084, 1280, 1355, 1871, 2168, 2710, 3742, 4336, 5420, 7484, 8672, 9355, 10840, 14968, 17344, 18710, 21680, 29936, 34688, 37420, 43360, 59872, 69376, 74840, 86720, 119744, 149680, 173440, 239488, 299360, 346880, 478976, 507041, 598720, 1014082, 1197440, 2028164, 2394880, 2535205, 4056328, 5070410, 8112656, 10140820, 16225312, 20281640, 32450624, 40563280, 64901248, 81126560, 129802496, 162253120, 324506240, 649012480]

約数ペア:

[(1, 649012480), (2, 324506240), (4, 162253120), (5, 129802496), (8, 81126560), (10, 64901248), (16, 40563280), (20, 32450624), (32, 20281640), (40, 16225312), (64, 10140820), (80, 8112656), (128, 5070410), (160, 4056328), (256, 2535205), (271, 2394880), (320, 2028164), (542, 1197440), (640, 1014082), (1084, 598720), (1280, 507041), (1355, 478976), (1871, 346880), (2168, 299360), (2710, 239488), (3742, 173440), (4336, 149680), (5420, 119744), (7484, 86720), (8672, 74840), (9355, 69376), (10840, 59872), (14968, 43360), (17344, 37420), (18710, 34688), (21680, 29936)]