18672640

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{521}}^1$

素因数の和:553

約数の個数: 88

約数和(自身を含む): 51289632

約数和(自身を除く): 32616992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 521, 560, 640, 896, 1024, 1042, 1120, 1280, 1792, 2084, 2240, 2560, 2605, 3584, 3647, 4168, 4480, 5120, 5210, 7168, 7294, 8336, 8960, 10420, 14588, 16672, 17920, 18235, 20840, 29176, 33344, 35840, 36470, 41680, 58352, 66688, 72940, 83360, 116704, 133376, 145880, 166720, 233408, 266752, 291760, 333440, 466816, 533504, 583520, 666880, 933632, 1167040, 1333760, 1867264, 2334080, 2667520, 3734528, 4668160, 9336320, 18672640]

約数ペア:

[(1, 18672640), (2, 9336320), (4, 4668160), (5, 3734528), (7, 2667520), (8, 2334080), (10, 1867264), (14, 1333760), (16, 1167040), (20, 933632), (28, 666880), (32, 583520), (35, 533504), (40, 466816), (56, 333440), (64, 291760), (70, 266752), (80, 233408), (112, 166720), (128, 145880), (140, 133376), (160, 116704), (224, 83360), (256, 72940), (280, 66688), (320, 58352), (448, 41680), (512, 36470), (521, 35840), (560, 33344), (640, 29176), (896, 20840), (1024, 18235), (1042, 17920), (1120, 16672), (1280, 14588), (1792, 10420), (2084, 8960), (2240, 8336), (2560, 7294), (2605, 7168), (3584, 5210), (3647, 5120), (4168, 4480)]