1905325890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1092

約数の個数: 128

約数和(自身を含む): 5204908800

約数和(自身を除く): 3299582910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 389, 390, 494, 570, 661, 741, 778, 1167, 1235, 1322, 1482, 1945, 1983, 2334, 2470, 3305, 3705, 3890, 3966, 5057, 5835, 6610, 7391, 7410, 8593, 9915, 10114, 11670, 12559, 14782, 15171, 17186, 19830, 22173, 25118, 25285, 25779, 30342, 36955, 37677, 42965, 44346, 50570, 51558, 62795, 73910, 75354, 75855, 85930, 96083, 110865, 125590, 128895, 151710, 163267, 188385, 192166, 221730, 257129, 257790, 288249, 326534, 376770, 480415, 489801, 514258, 576498, 771387, 816335, 960830, 979602, 1285645, 1441245, 1542774, 1632670, 2449005, 2571290, 2882490, 3342677, 3856935, 4885451, 4898010, 6685354, 7713870, 9770902, 10028031, 14656353, 16713385, 20056062, 24427255, 29312706, 33426770, 48854510, 50140155, 63510863, 73281765, 100280310, 127021726, 146563530, 190532589, 317554315, 381065178, 635108630, 952662945, 1905325890]

約数ペア:

[(1, 1905325890), (2, 952662945), (3, 635108630), (5, 381065178), (6, 317554315), (10, 190532589), (13, 146563530), (15, 127021726), (19, 100280310), (26, 73281765), (30, 63510863), (38, 50140155), (39, 48854510), (57, 33426770), (65, 29312706), (78, 24427255), (95, 20056062), (114, 16713385), (130, 14656353), (190, 10028031), (195, 9770902), (247, 7713870), (285, 6685354), (389, 4898010), (390, 4885451), (494, 3856935), (570, 3342677), (661, 2882490), (741, 2571290), (778, 2449005), (1167, 1632670), (1235, 1542774), (1322, 1441245), (1482, 1285645), (1945, 979602), (1983, 960830), (2334, 816335), (2470, 771387), (3305, 576498), (3705, 514258), (3890, 489801), (3966, 480415), (5057, 376770), (5835, 326534), (6610, 288249), (7391, 257790), (7410, 257129), (8593, 221730), (9915, 192166), (10114, 188385), (11670, 163267), (12559, 151710), (14782, 128895), (15171, 125590), (17186, 110865), (19830, 96083), (22173, 85930), (25118, 75855), (25285, 75354), (25779, 73910), (30342, 62795), (36955, 51558), (37677, 50570), (42965, 44346)]