128007280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1543}}^1$

素因数の和:1634

約数の個数: 80

約数和(自身を含む): 320497344

約数和(自身を除く): 192490064

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 61, 68, 80, 85, 122, 136, 170, 244, 272, 305, 340, 488, 610, 680, 976, 1037, 1220, 1360, 1543, 2074, 2440, 3086, 4148, 4880, 5185, 6172, 7715, 8296, 10370, 12344, 15430, 16592, 20740, 24688, 26231, 30860, 41480, 52462, 61720, 82960, 94123, 104924, 123440, 131155, 188246, 209848, 262310, 376492, 419696, 470615, 524620, 752984, 941230, 1049240, 1505968, 1600091, 1882460, 2098480, 3200182, 3764920, 6400364, 7529840, 8000455, 12800728, 16000910, 25601456, 32001820, 64003640, 128007280]

約数ペア:

[(1, 128007280), (2, 64003640), (4, 32001820), (5, 25601456), (8, 16000910), (10, 12800728), (16, 8000455), (17, 7529840), (20, 6400364), (34, 3764920), (40, 3200182), (61, 2098480), (68, 1882460), (80, 1600091), (85, 1505968), (122, 1049240), (136, 941230), (170, 752984), (244, 524620), (272, 470615), (305, 419696), (340, 376492), (488, 262310), (610, 209848), (680, 188246), (976, 131155), (1037, 123440), (1220, 104924), (1360, 94123), (1543, 82960), (2074, 61720), (2440, 52462), (3086, 41480), (4148, 30860), (4880, 26231), (5185, 24688), (6172, 20740), (7715, 16592), (8296, 15430), (10370, 12344)]