391796910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:471

約数の個数: 144

約数和(自身を含む): 1112641920

約数和(自身を除く): 720845010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 31, 38, 45, 57, 62, 90, 93, 95, 114, 155, 171, 186, 190, 279, 285, 310, 342, 361, 389, 465, 558, 570, 589, 722, 778, 855, 930, 1083, 1167, 1178, 1395, 1710, 1767, 1805, 1945, 2166, 2334, 2790, 2945, 3249, 3501, 3534, 3610, 3890, 5301, 5415, 5835, 5890, 6498, 7002, 7391, 8835, 10602, 10830, 11191, 11670, 12059, 14782, 16245, 17505, 17670, 22173, 22382, 24118, 26505, 32490, 33573, 35010, 36177, 36955, 44346, 53010, 55955, 60295, 66519, 67146, 72354, 73910, 100719, 108531, 110865, 111910, 120590, 133038, 140429, 167865, 180885, 201438, 217062, 221730, 229121, 280858, 332595, 335730, 361770, 421287, 458242, 503595, 542655, 665190, 687363, 702145, 842574, 1007190, 1085310, 1145605, 1263861, 1374726, 1404290, 2062089, 2106435, 2291210, 2527722, 3436815, 4124178, 4212870, 4353299, 6319305, 6873630, 8706598, 10310445, 12638610, 13059897, 20620890, 21766495, 26119794, 39179691, 43532990, 65299485, 78359382, 130598970, 195898455, 391796910]

約数ペア:

[(1, 391796910), (2, 195898455), (3, 130598970), (5, 78359382), (6, 65299485), (9, 43532990), (10, 39179691), (15, 26119794), (18, 21766495), (19, 20620890), (30, 13059897), (31, 12638610), (38, 10310445), (45, 8706598), (57, 6873630), (62, 6319305), (90, 4353299), (93, 4212870), (95, 4124178), (114, 3436815), (155, 2527722), (171, 2291210), (186, 2106435), (190, 2062089), (279, 1404290), (285, 1374726), (310, 1263861), (342, 1145605), (361, 1085310), (389, 1007190), (465, 842574), (558, 702145), (570, 687363), (589, 665190), (722, 542655), (778, 503595), (855, 458242), (930, 421287), (1083, 361770), (1167, 335730), (1178, 332595), (1395, 280858), (1710, 229121), (1767, 221730), (1805, 217062), (1945, 201438), (2166, 180885), (2334, 167865), (2790, 140429), (2945, 133038), (3249, 120590), (3501, 111910), (3534, 110865), (3610, 108531), (3890, 100719), (5301, 73910), (5415, 72354), (5835, 67146), (5890, 66519), (6498, 60295), (7002, 55955), (7391, 53010), (8835, 44346), (10602, 36955), (10830, 36177), (11191, 35010), (11670, 33573), (12059, 32490), (14782, 26505), (16245, 24118), (17505, 22382), (17670, 22173)]