28111520

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7639}}^1$

素因数の和:7677

約数の個数: 48

約数和(自身を含む): 69310080

約数和(自身を除く): 41198560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 7639, 15278, 30556, 38195, 61112, 76390, 122224, 152780, 175697, 244448, 305560, 351394, 611120, 702788, 878485, 1222240, 1405576, 1756970, 2811152, 3513940, 5622304, 7027880, 14055760, 28111520]

約数ペア:

[(1, 28111520), (2, 14055760), (4, 7027880), (5, 5622304), (8, 3513940), (10, 2811152), (16, 1756970), (20, 1405576), (23, 1222240), (32, 878485), (40, 702788), (46, 611120), (80, 351394), (92, 305560), (115, 244448), (160, 175697), (184, 152780), (230, 122224), (368, 76390), (460, 61112), (736, 38195), (920, 30556), (1840, 15278), (3680, 7639)]