28418560

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{653}}^1$

素因数の和:693

約数の個数: 80

約数和(自身を含む): 72256536

約数和(自身を除く): 43837976

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 653, 680, 1088, 1280, 1306, 1360, 2176, 2560, 2612, 2720, 3265, 4352, 5224, 5440, 6530, 8704, 10448, 10880, 11101, 13060, 20896, 21760, 22202, 26120, 41792, 43520, 44404, 52240, 55505, 83584, 88808, 104480, 111010, 167168, 177616, 208960, 222020, 334336, 355232, 417920, 444040, 710464, 835840, 888080, 1420928, 1671680, 1776160, 2841856, 3552320, 5683712, 7104640, 14209280, 28418560]

約数ペア:

[(1, 28418560), (2, 14209280), (4, 7104640), (5, 5683712), (8, 3552320), (10, 2841856), (16, 1776160), (17, 1671680), (20, 1420928), (32, 888080), (34, 835840), (40, 710464), (64, 444040), (68, 417920), (80, 355232), (85, 334336), (128, 222020), (136, 208960), (160, 177616), (170, 167168), (256, 111010), (272, 104480), (320, 88808), (340, 83584), (512, 55505), (544, 52240), (640, 44404), (653, 43520), (680, 41792), (1088, 26120), (1280, 22202), (1306, 21760), (1360, 20896), (2176, 13060), (2560, 11101), (2612, 10880), (2720, 10448), (3265, 8704), (4352, 6530), (5224, 5440)]