28383910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 57139200

約数和(自身を除く): 28755290

約数列:

[1, 2, 5, 10, 19, 31, 38, 61, 62, 79, 95, 122, 155, 158, 190, 305, 310, 395, 589, 610, 790, 1159, 1178, 1501, 1891, 2318, 2449, 2945, 3002, 3782, 4819, 4898, 5795, 5890, 7505, 9455, 9638, 11590, 12245, 15010, 18910, 24095, 24490, 35929, 46531, 48190, 71858, 91561, 93062, 149389, 179645, 183122, 232655, 298778, 359290, 457805, 465310, 746945, 915610, 1493890, 2838391, 5676782, 14191955, 28383910]

約数ペア:

[(1, 28383910), (2, 14191955), (5, 5676782), (10, 2838391), (19, 1493890), (31, 915610), (38, 746945), (61, 465310), (62, 457805), (79, 359290), (95, 298778), (122, 232655), (155, 183122), (158, 179645), (190, 149389), (305, 93062), (310, 91561), (395, 71858), (589, 48190), (610, 46531), (790, 35929), (1159, 24490), (1178, 24095), (1501, 18910), (1891, 15010), (2318, 12245), (2449, 11590), (2945, 9638), (3002, 9455), (3782, 7505), (4819, 5890), (4898, 5795)]