321503560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{271}}^1$

素因数の和:531

約数の個数: 128

約数和(自身を含む): 877363200

約数和(自身を除く): 555859640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 223, 266, 271, 280, 380, 446, 532, 542, 665, 760, 892, 1064, 1084, 1115, 1330, 1355, 1561, 1784, 1897, 2168, 2230, 2660, 2710, 3122, 3794, 4237, 4460, 5149, 5320, 5420, 6244, 7588, 7805, 8474, 8920, 9485, 10298, 10840, 12488, 15176, 15610, 16948, 18970, 20596, 21185, 25745, 29659, 31220, 33896, 36043, 37940, 41192, 42370, 51490, 59318, 60433, 62440, 72086, 75880, 84740, 102980, 118636, 120866, 144172, 148295, 169480, 180215, 205960, 237272, 241732, 288344, 296590, 302165, 360430, 423031, 483464, 593180, 604330, 720860, 846062, 1148227, 1186360, 1208660, 1441720, 1692124, 2115155, 2296454, 2417320, 3384248, 4230310, 4592908, 5741135, 8037589, 8460620, 9185816, 11482270, 16075178, 16921240, 22964540, 32150356, 40187945, 45929080, 64300712, 80375890, 160751780, 321503560]

約数ペア:

[(1, 321503560), (2, 160751780), (4, 80375890), (5, 64300712), (7, 45929080), (8, 40187945), (10, 32150356), (14, 22964540), (19, 16921240), (20, 16075178), (28, 11482270), (35, 9185816), (38, 8460620), (40, 8037589), (56, 5741135), (70, 4592908), (76, 4230310), (95, 3384248), (133, 2417320), (140, 2296454), (152, 2115155), (190, 1692124), (223, 1441720), (266, 1208660), (271, 1186360), (280, 1148227), (380, 846062), (446, 720860), (532, 604330), (542, 593180), (665, 483464), (760, 423031), (892, 360430), (1064, 302165), (1084, 296590), (1115, 288344), (1330, 241732), (1355, 237272), (1561, 205960), (1784, 180215), (1897, 169480), (2168, 148295), (2230, 144172), (2660, 120866), (2710, 118636), (3122, 102980), (3794, 84740), (4237, 75880), (4460, 72086), (5149, 62440), (5320, 60433), (5420, 59318), (6244, 51490), (7588, 42370), (7805, 41192), (8474, 37940), (8920, 36043), (9485, 33896), (10298, 31220), (10840, 29659), (12488, 25745), (15176, 21185), (15610, 20596), (16948, 18970)]