721102928

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{2593}}^1$

素因数の和:2812

約数の個数: 80

約数和(自身を含む): 1729222656

約数和(自身を除く): 1008119728

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 191, 208, 364, 382, 728, 764, 1337, 1456, 1528, 2483, 2593, 2674, 3056, 4966, 5186, 5348, 9932, 10372, 10696, 17381, 18151, 19864, 20744, 21392, 33709, 34762, 36302, 39728, 41488, 67418, 69524, 72604, 134836, 139048, 145208, 235963, 269672, 278096, 290416, 471926, 495263, 539344, 943852, 990526, 1887704, 1981052, 3466841, 3775408, 3962104, 6438419, 6933682, 7924208, 12876838, 13867364, 25753676, 27734728, 45068933, 51507352, 55469456, 90137866, 103014704, 180275732, 360551464, 721102928]

約数ペア:

[(1, 721102928), (2, 360551464), (4, 180275732), (7, 103014704), (8, 90137866), (13, 55469456), (14, 51507352), (16, 45068933), (26, 27734728), (28, 25753676), (52, 13867364), (56, 12876838), (91, 7924208), (104, 6933682), (112, 6438419), (182, 3962104), (191, 3775408), (208, 3466841), (364, 1981052), (382, 1887704), (728, 990526), (764, 943852), (1337, 539344), (1456, 495263), (1528, 471926), (2483, 290416), (2593, 278096), (2674, 269672), (3056, 235963), (4966, 145208), (5186, 139048), (5348, 134836), (9932, 72604), (10372, 69524), (10696, 67418), (17381, 41488), (18151, 39728), (19864, 36302), (20744, 34762), (21392, 33709)]