248793990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:374

約数の個数: 96

約数和(自身を含む): 636896736

約数和(自身を除く): 388102746

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 61, 69, 115, 122, 138, 183, 230, 257, 305, 345, 366, 514, 529, 610, 690, 771, 915, 1058, 1285, 1403, 1542, 1587, 1830, 2570, 2645, 2806, 3174, 3855, 4209, 5290, 5911, 7015, 7710, 7935, 8418, 11822, 14030, 15677, 15870, 17733, 21045, 29555, 31354, 32269, 35466, 42090, 47031, 59110, 64538, 78385, 88665, 94062, 96807, 135953, 156770, 161345, 177330, 193614, 235155, 271906, 322690, 360571, 407859, 470310, 484035, 679765, 721142, 815718, 968070, 1081713, 1359530, 1802855, 2039295, 2163426, 3605710, 4078590, 5408565, 8293133, 10817130, 16586266, 24879399, 41465665, 49758798, 82931330, 124396995, 248793990]

約数ペア:

[(1, 248793990), (2, 124396995), (3, 82931330), (5, 49758798), (6, 41465665), (10, 24879399), (15, 16586266), (23, 10817130), (30, 8293133), (46, 5408565), (61, 4078590), (69, 3605710), (115, 2163426), (122, 2039295), (138, 1802855), (183, 1359530), (230, 1081713), (257, 968070), (305, 815718), (345, 721142), (366, 679765), (514, 484035), (529, 470310), (610, 407859), (690, 360571), (771, 322690), (915, 271906), (1058, 235155), (1285, 193614), (1403, 177330), (1542, 161345), (1587, 156770), (1830, 135953), (2570, 96807), (2645, 94062), (2806, 88665), (3174, 78385), (3855, 64538), (4209, 59110), (5290, 47031), (5911, 42090), (7015, 35466), (7710, 32269), (7935, 31354), (8418, 29555), (11822, 21045), (14030, 17733), (15677, 15870)]