991770290212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{173}}^1\times {\mathrm{433}}^1\times {\mathrm{881}}^1$

素因数の和:1538

約数の個数: 144

約数和(自身を含む): 2003881399632

約数和(自身を除く): 1012111109420

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 173, 221, 289, 346, 433, 442, 578, 692, 866, 881, 884, 1156, 1732, 1762, 2249, 2941, 3524, 3757, 4498, 5629, 5882, 7361, 7514, 8996, 11258, 11453, 11764, 14722, 14977, 15028, 22516, 22906, 29444, 29954, 38233, 45812, 49997, 59908, 74909, 76466, 95693, 99994, 125137, 149818, 152413, 152932, 191386, 194701, 199988, 250274, 254609, 299636, 304826, 381473, 382772, 389402, 500548, 509218, 609652, 649961, 762946, 778804, 973817, 1018436, 1273453, 1299922, 1525892, 1626781, 1947634, 1981369, 2546906, 2591021, 2599844, 3253562, 3309917, 3895268, 3962738, 4959149, 5093812, 5182042, 6485041, 6507124, 6619834, 7925476, 9918298, 10364084, 12970082, 13239668, 16554889, 19836596, 21648701, 25940164, 33109778, 33683273, 43297402, 44047357, 65994829, 66219556, 67366546, 84305533, 86594804, 88094714, 110245697, 131989658, 134733092, 168611066, 176189428, 220491394, 263979316, 281433113, 337222132, 440982788, 562866226, 572615641, 857932777, 1121912093, 1125732452, 1145231282, 1433194061, 1715865554, 2243824186, 2290462564, 2866388122, 3431731108, 4487648372, 5732776244, 14584857209, 19072505581, 29169714418, 38145011162, 58339428836, 76290022324, 247942572553, 495885145106, 991770290212]

約数ペア:

[(1, 991770290212), (2, 495885145106), (4, 247942572553), (13, 76290022324), (17, 58339428836), (26, 38145011162), (34, 29169714418), (52, 19072505581), (68, 14584857209), (173, 5732776244), (221, 4487648372), (289, 3431731108), (346, 2866388122), (433, 2290462564), (442, 2243824186), (578, 1715865554), (692, 1433194061), (866, 1145231282), (881, 1125732452), (884, 1121912093), (1156, 857932777), (1732, 572615641), (1762, 562866226), (2249, 440982788), (2941, 337222132), (3524, 281433113), (3757, 263979316), (4498, 220491394), (5629, 176189428), (5882, 168611066), (7361, 134733092), (7514, 131989658), (8996, 110245697), (11258, 88094714), (11453, 86594804), (11764, 84305533), (14722, 67366546), (14977, 66219556), (15028, 65994829), (22516, 44047357), (22906, 43297402), (29444, 33683273), (29954, 33109778), (38233, 25940164), (45812, 21648701), (49997, 19836596), (59908, 16554889), (74909, 13239668), (76466, 12970082), (95693, 10364084), (99994, 9918298), (125137, 7925476), (149818, 6619834), (152413, 6507124), (152932, 6485041), (191386, 5182042), (194701, 5093812), (199988, 4959149), (250274, 3962738), (254609, 3895268), (299636, 3309917), (304826, 3253562), (381473, 2599844), (382772, 2591021), (389402, 2546906), (500548, 1981369), (509218, 1947634), (609652, 1626781), (649961, 1525892), (762946, 1299922), (778804, 1273453), (973817, 1018436)]