28947750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2969}}^1$

素因数の和:3002

約数の個数: 64

約数和(自身を含む): 77837760

約数和(自身を除く): 48890010

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 2969, 3250, 4875, 5938, 8907, 9750, 14845, 17814, 29690, 38597, 44535, 74225, 77194, 89070, 115791, 148450, 192985, 222675, 231582, 371125, 385970, 445350, 578955, 742250, 964925, 1113375, 1157910, 1929850, 2226750, 2894775, 4824625, 5789550, 9649250, 14473875, 28947750]

約数ペア:

[(1, 28947750), (2, 14473875), (3, 9649250), (5, 5789550), (6, 4824625), (10, 2894775), (13, 2226750), (15, 1929850), (25, 1157910), (26, 1113375), (30, 964925), (39, 742250), (50, 578955), (65, 445350), (75, 385970), (78, 371125), (125, 231582), (130, 222675), (150, 192985), (195, 148450), (250, 115791), (325, 89070), (375, 77194), (390, 74225), (650, 44535), (750, 38597), (975, 29690), (1625, 17814), (1950, 14845), (2969, 9750), (3250, 8907), (4875, 5938)]