20733440

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:132

約数の個数: 160

約数和(自身を含む): 61871040

約数和(自身を除く): 41137600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 89, 91, 104, 112, 128, 130, 140, 160, 178, 182, 208, 224, 256, 260, 280, 320, 356, 364, 416, 445, 448, 455, 512, 520, 560, 623, 640, 712, 728, 832, 890, 896, 910, 1040, 1120, 1157, 1246, 1280, 1424, 1456, 1664, 1780, 1792, 1820, 2080, 2240, 2314, 2492, 2560, 2848, 2912, 3115, 3328, 3560, 3584, 3640, 4160, 4480, 4628, 4984, 5696, 5785, 5824, 6230, 6656, 7120, 7280, 8099, 8320, 8960, 9256, 9968, 11392, 11570, 11648, 12460, 14240, 14560, 16198, 16640, 17920, 18512, 19936, 22784, 23140, 23296, 24920, 28480, 29120, 32396, 33280, 37024, 39872, 40495, 45568, 46280, 46592, 49840, 56960, 58240, 64792, 74048, 79744, 80990, 92560, 99680, 113920, 116480, 129584, 148096, 159488, 161980, 185120, 199360, 227840, 232960, 259168, 296192, 318976, 323960, 370240, 398720, 518336, 592384, 647920, 740480, 797440, 1036672, 1295840, 1480960, 1594880, 2073344, 2591680, 2961920, 4146688, 5183360, 10366720, 20733440]

約数ペア:

[(1, 20733440), (2, 10366720), (4, 5183360), (5, 4146688), (7, 2961920), (8, 2591680), (10, 2073344), (13, 1594880), (14, 1480960), (16, 1295840), (20, 1036672), (26, 797440), (28, 740480), (32, 647920), (35, 592384), (40, 518336), (52, 398720), (56, 370240), (64, 323960), (65, 318976), (70, 296192), (80, 259168), (89, 232960), (91, 227840), (104, 199360), (112, 185120), (128, 161980), (130, 159488), (140, 148096), (160, 129584), (178, 116480), (182, 113920), (208, 99680), (224, 92560), (256, 80990), (260, 79744), (280, 74048), (320, 64792), (356, 58240), (364, 56960), (416, 49840), (445, 46592), (448, 46280), (455, 45568), (512, 40495), (520, 39872), (560, 37024), (623, 33280), (640, 32396), (712, 29120), (728, 28480), (832, 24920), (890, 23296), (896, 23140), (910, 22784), (1040, 19936), (1120, 18512), (1157, 17920), (1246, 16640), (1280, 16198), (1424, 14560), (1456, 14240), (1664, 12460), (1780, 11648), (1792, 11570), (1820, 11392), (2080, 9968), (2240, 9256), (2314, 8960), (2492, 8320), (2560, 8099), (2848, 7280), (2912, 7120), (3115, 6656), (3328, 6230), (3560, 5824), (3584, 5785), (3640, 5696), (4160, 4984), (4480, 4628)]