28221232

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 63988960

約数和(自身を除く): 35767728

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 37, 38, 52, 74, 76, 104, 148, 152, 193, 208, 247, 296, 304, 386, 481, 494, 592, 703, 772, 962, 988, 1406, 1544, 1924, 1976, 2509, 2812, 3088, 3667, 3848, 3952, 5018, 5624, 7141, 7334, 7696, 9139, 10036, 11248, 14282, 14668, 18278, 20072, 28564, 29336, 36556, 40144, 47671, 57128, 58672, 73112, 92833, 95342, 114256, 135679, 146224, 185666, 190684, 271358, 371332, 381368, 542716, 742664, 762736, 1085432, 1485328, 1763827, 2170864, 3527654, 7055308, 14110616, 28221232]

約数ペア:

[(1, 28221232), (2, 14110616), (4, 7055308), (8, 3527654), (13, 2170864), (16, 1763827), (19, 1485328), (26, 1085432), (37, 762736), (38, 742664), (52, 542716), (74, 381368), (76, 371332), (104, 271358), (148, 190684), (152, 185666), (193, 146224), (208, 135679), (247, 114256), (296, 95342), (304, 92833), (386, 73112), (481, 58672), (494, 57128), (592, 47671), (703, 40144), (772, 36556), (962, 29336), (988, 28564), (1406, 20072), (1544, 18278), (1924, 14668), (1976, 14282), (2509, 11248), (2812, 10036), (3088, 9139), (3667, 7696), (3848, 7334), (3952, 7141), (5018, 5624)]