81636516

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:402

約数の個数: 144

約数和(自身を含む): 243629568

約数和(自身を除く): 161993052

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 31, 34, 36, 39, 51, 52, 62, 68, 78, 93, 102, 117, 124, 153, 156, 186, 204, 221, 234, 279, 306, 331, 372, 403, 442, 468, 527, 558, 612, 662, 663, 806, 884, 993, 1054, 1116, 1209, 1324, 1326, 1581, 1612, 1986, 1989, 2108, 2418, 2652, 2979, 3162, 3627, 3972, 3978, 4303, 4743, 4836, 5627, 5958, 6324, 6851, 7254, 7956, 8606, 9486, 10261, 11254, 11916, 12909, 13702, 14508, 16881, 17212, 18972, 20522, 20553, 22508, 25818, 27404, 30783, 33762, 38727, 41044, 41106, 50643, 51636, 61566, 61659, 67524, 73151, 77454, 82212, 92349, 101286, 123132, 123318, 133393, 146302, 154908, 174437, 184698, 202572, 219453, 246636, 266786, 292604, 348874, 369396, 400179, 438906, 523311, 533572, 658359, 697748, 800358, 877812, 1046622, 1200537, 1316718, 1569933, 1600716, 2093244, 2267681, 2401074, 2633436, 3139866, 4535362, 4802148, 6279732, 6803043, 9070724, 13606086, 20409129, 27212172, 40818258, 81636516]

約数ペア:

[(1, 81636516), (2, 40818258), (3, 27212172), (4, 20409129), (6, 13606086), (9, 9070724), (12, 6803043), (13, 6279732), (17, 4802148), (18, 4535362), (26, 3139866), (31, 2633436), (34, 2401074), (36, 2267681), (39, 2093244), (51, 1600716), (52, 1569933), (62, 1316718), (68, 1200537), (78, 1046622), (93, 877812), (102, 800358), (117, 697748), (124, 658359), (153, 533572), (156, 523311), (186, 438906), (204, 400179), (221, 369396), (234, 348874), (279, 292604), (306, 266786), (331, 246636), (372, 219453), (403, 202572), (442, 184698), (468, 174437), (527, 154908), (558, 146302), (612, 133393), (662, 123318), (663, 123132), (806, 101286), (884, 92349), (993, 82212), (1054, 77454), (1116, 73151), (1209, 67524), (1324, 61659), (1326, 61566), (1581, 51636), (1612, 50643), (1986, 41106), (1989, 41044), (2108, 38727), (2418, 33762), (2652, 30783), (2979, 27404), (3162, 25818), (3627, 22508), (3972, 20553), (3978, 20522), (4303, 18972), (4743, 17212), (4836, 16881), (5627, 14508), (5958, 13702), (6324, 12909), (6851, 11916), (7254, 11254), (7956, 10261), (8606, 9486)]