215931492

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:390

約数の個数: 144

約数和(自身を含む): 651915264

約数和(自身を除く): 435983772

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 131, 186, 211, 217, 252, 262, 279, 372, 393, 422, 434, 524, 558, 633, 651, 786, 844, 868, 917, 1116, 1179, 1266, 1302, 1477, 1572, 1834, 1899, 1953, 2358, 2532, 2604, 2751, 2954, 3668, 3798, 3906, 4061, 4431, 4716, 5502, 5908, 6541, 7596, 7812, 8122, 8253, 8862, 11004, 12183, 13082, 13293, 16244, 16506, 17724, 19623, 24366, 26164, 26586, 27641, 28427, 33012, 36549, 39246, 45787, 48732, 53172, 55282, 56854, 58869, 73098, 78492, 82923, 85281, 91574, 110564, 113708, 117738, 137361, 146196, 165846, 170562, 183148, 193487, 235476, 248769, 255843, 274722, 331692, 341124, 386974, 412083, 497538, 511686, 549444, 580461, 773948, 824166, 856871, 995076, 1023372, 1160922, 1648332, 1713742, 1741383, 2321844, 2570613, 3427484, 3482766, 5141226, 5998097, 6965532, 7711839, 10282452, 11996194, 15423678, 17994291, 23992388, 30847356, 35988582, 53982873, 71977164, 107965746, 215931492]

約数ペア:

[(1, 215931492), (2, 107965746), (3, 71977164), (4, 53982873), (6, 35988582), (7, 30847356), (9, 23992388), (12, 17994291), (14, 15423678), (18, 11996194), (21, 10282452), (28, 7711839), (31, 6965532), (36, 5998097), (42, 5141226), (62, 3482766), (63, 3427484), (84, 2570613), (93, 2321844), (124, 1741383), (126, 1713742), (131, 1648332), (186, 1160922), (211, 1023372), (217, 995076), (252, 856871), (262, 824166), (279, 773948), (372, 580461), (393, 549444), (422, 511686), (434, 497538), (524, 412083), (558, 386974), (633, 341124), (651, 331692), (786, 274722), (844, 255843), (868, 248769), (917, 235476), (1116, 193487), (1179, 183148), (1266, 170562), (1302, 165846), (1477, 146196), (1572, 137361), (1834, 117738), (1899, 113708), (1953, 110564), (2358, 91574), (2532, 85281), (2604, 82923), (2751, 78492), (2954, 73098), (3668, 58869), (3798, 56854), (3906, 55282), (4061, 53172), (4431, 48732), (4716, 45787), (5502, 39246), (5908, 36549), (6541, 33012), (7596, 28427), (7812, 27641), (8122, 26586), (8253, 26164), (8862, 24366), (11004, 19623), (12183, 17724), (13082, 16506), (13293, 16244)]