19280040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:771

約数の個数: 128

約数和(自身を含む): 66044160

約数和(自身を除く): 46764120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 39, 40, 51, 52, 60, 65, 68, 78, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 221, 255, 260, 312, 340, 390, 408, 442, 510, 520, 663, 680, 727, 780, 884, 1020, 1105, 1326, 1454, 1560, 1768, 2040, 2181, 2210, 2652, 2908, 3315, 3635, 4362, 4420, 5304, 5816, 6630, 7270, 8724, 8840, 9451, 10905, 12359, 13260, 14540, 17448, 18902, 21810, 24718, 26520, 28353, 29080, 37077, 37804, 43620, 47255, 49436, 56706, 61795, 74154, 75608, 87240, 94510, 98872, 113412, 123590, 141765, 148308, 160667, 185385, 189020, 226824, 247180, 283530, 296616, 321334, 370770, 378040, 482001, 494360, 567060, 642668, 741540, 803335, 964002, 1134120, 1285336, 1483080, 1606670, 1928004, 2410005, 3213340, 3856008, 4820010, 6426680, 9640020, 19280040]

約数ペア:

[(1, 19280040), (2, 9640020), (3, 6426680), (4, 4820010), (5, 3856008), (6, 3213340), (8, 2410005), (10, 1928004), (12, 1606670), (13, 1483080), (15, 1285336), (17, 1134120), (20, 964002), (24, 803335), (26, 741540), (30, 642668), (34, 567060), (39, 494360), (40, 482001), (51, 378040), (52, 370770), (60, 321334), (65, 296616), (68, 283530), (78, 247180), (85, 226824), (102, 189020), (104, 185385), (120, 160667), (130, 148308), (136, 141765), (156, 123590), (170, 113412), (195, 98872), (204, 94510), (221, 87240), (255, 75608), (260, 74154), (312, 61795), (340, 56706), (390, 49436), (408, 47255), (442, 43620), (510, 37804), (520, 37077), (663, 29080), (680, 28353), (727, 26520), (780, 24718), (884, 21810), (1020, 18902), (1105, 17448), (1326, 14540), (1454, 13260), (1560, 12359), (1768, 10905), (2040, 9451), (2181, 8840), (2210, 8724), (2652, 7270), (2908, 6630), (3315, 5816), (3635, 5304), (4362, 4420)]