388973988

素因数分解:

$2^2\times 3^6\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:397

約数の個数: 168

約数和(自身を含む): 1137979136

約数和(自身を除く): 749005148

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 31, 36, 39, 52, 54, 62, 78, 81, 93, 108, 117, 124, 156, 162, 186, 234, 243, 279, 324, 331, 351, 372, 403, 468, 486, 558, 662, 702, 729, 806, 837, 972, 993, 1053, 1116, 1209, 1324, 1404, 1458, 1612, 1674, 1986, 2106, 2418, 2511, 2916, 2979, 3159, 3348, 3627, 3972, 4212, 4303, 4836, 5022, 5958, 6318, 7254, 7533, 8606, 8937, 9477, 10044, 10261, 10881, 11916, 12636, 12909, 14508, 15066, 17212, 17874, 18954, 20522, 21762, 22599, 25818, 26811, 30132, 30783, 32643, 35748, 37908, 38727, 41044, 43524, 45198, 51636, 53622, 61566, 65286, 77454, 80433, 90396, 92349, 97929, 107244, 116181, 123132, 130572, 133393, 154908, 160866, 184698, 195858, 232362, 241299, 266786, 277047, 293787, 321732, 348543, 369396, 391716, 400179, 464724, 482598, 533572, 554094, 587574, 697086, 800358, 831141, 965196, 1045629, 1108188, 1175148, 1200537, 1394172, 1600716, 1662282, 2091258, 2401074, 2493423, 3136887, 3324564, 3601611, 4182516, 4802148, 4986846, 6273774, 7203222, 7480269, 9973692, 10804833, 12547548, 14406444, 14960538, 21609666, 29921076, 32414499, 43219332, 64828998, 97243497, 129657996, 194486994, 388973988]

約数ペア:

[(1, 388973988), (2, 194486994), (3, 129657996), (4, 97243497), (6, 64828998), (9, 43219332), (12, 32414499), (13, 29921076), (18, 21609666), (26, 14960538), (27, 14406444), (31, 12547548), (36, 10804833), (39, 9973692), (52, 7480269), (54, 7203222), (62, 6273774), (78, 4986846), (81, 4802148), (93, 4182516), (108, 3601611), (117, 3324564), (124, 3136887), (156, 2493423), (162, 2401074), (186, 2091258), (234, 1662282), (243, 1600716), (279, 1394172), (324, 1200537), (331, 1175148), (351, 1108188), (372, 1045629), (403, 965196), (468, 831141), (486, 800358), (558, 697086), (662, 587574), (702, 554094), (729, 533572), (806, 482598), (837, 464724), (972, 400179), (993, 391716), (1053, 369396), (1116, 348543), (1209, 321732), (1324, 293787), (1404, 277047), (1458, 266786), (1612, 241299), (1674, 232362), (1986, 195858), (2106, 184698), (2418, 160866), (2511, 154908), (2916, 133393), (2979, 130572), (3159, 123132), (3348, 116181), (3627, 107244), (3972, 97929), (4212, 92349), (4303, 90396), (4836, 80433), (5022, 77454), (5958, 65286), (6318, 61566), (7254, 53622), (7533, 51636), (8606, 45198), (8937, 43524), (9477, 41044), (10044, 38727), (10261, 37908), (10881, 35748), (11916, 32643), (12636, 30783), (12909, 30132), (14508, 26811), (15066, 25818), (17212, 22599), (17874, 21762), (18954, 20522)]