28832440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^2$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 80750880

約数和(自身を除く): 51918440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 89, 91, 104, 130, 140, 178, 182, 260, 280, 356, 364, 445, 455, 520, 623, 712, 728, 890, 910, 1157, 1246, 1780, 1820, 2314, 2492, 3115, 3560, 3640, 4628, 4984, 5785, 6230, 7921, 8099, 9256, 11570, 12460, 15842, 16198, 23140, 24920, 31684, 32396, 39605, 40495, 46280, 55447, 63368, 64792, 79210, 80990, 102973, 110894, 158420, 161980, 205946, 221788, 277235, 316840, 323960, 411892, 443576, 514865, 554470, 720811, 823784, 1029730, 1108940, 1441622, 2059460, 2217880, 2883244, 3604055, 4118920, 5766488, 7208110, 14416220, 28832440]

約数ペア:

[(1, 28832440), (2, 14416220), (4, 7208110), (5, 5766488), (7, 4118920), (8, 3604055), (10, 2883244), (13, 2217880), (14, 2059460), (20, 1441622), (26, 1108940), (28, 1029730), (35, 823784), (40, 720811), (52, 554470), (56, 514865), (65, 443576), (70, 411892), (89, 323960), (91, 316840), (104, 277235), (130, 221788), (140, 205946), (178, 161980), (182, 158420), (260, 110894), (280, 102973), (356, 80990), (364, 79210), (445, 64792), (455, 63368), (520, 55447), (623, 46280), (712, 40495), (728, 39605), (890, 32396), (910, 31684), (1157, 24920), (1246, 23140), (1780, 16198), (1820, 15842), (2314, 12460), (2492, 11570), (3115, 9256), (3560, 8099), (3640, 7921), (4628, 6230), (4984, 5785)]