660757760

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39709}}^1$

素因数の和:39743

約数の個数: 72

約数和(自身を含む): 1704512040

約数和(自身を除く): 1043754280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 39709, 79418, 158836, 198545, 317672, 397090, 516217, 635344, 794180, 1032434, 1270688, 1588360, 2064868, 2541376, 2581085, 3176720, 4129736, 5082752, 5162170, 6353440, 8259472, 10165504, 10324340, 12706880, 16518944, 20648680, 25413760, 33037888, 41297360, 50827520, 66075776, 82594720, 132151552, 165189440, 330378880, 660757760]

約数ペア:

[(1, 660757760), (2, 330378880), (4, 165189440), (5, 132151552), (8, 82594720), (10, 66075776), (13, 50827520), (16, 41297360), (20, 33037888), (26, 25413760), (32, 20648680), (40, 16518944), (52, 12706880), (64, 10324340), (65, 10165504), (80, 8259472), (104, 6353440), (128, 5162170), (130, 5082752), (160, 4129736), (208, 3176720), (256, 2581085), (260, 2541376), (320, 2064868), (416, 1588360), (520, 1270688), (640, 1032434), (832, 794180), (1040, 635344), (1280, 516217), (1664, 397090), (2080, 317672), (3328, 198545), (4160, 158836), (8320, 79418), (16640, 39709)]