74721780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1913}}^1$

素因数の和:1966

約数の個数: 144

約数和(自身を含む): 267531264

約数和(自身を除く): 192809484

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1395, 1860, 1913, 1953, 2170, 2604, 2790, 3255, 3826, 3906, 4340, 5580, 5739, 6510, 7652, 7812, 9565, 9765, 11478, 13020, 13391, 17217, 19130, 19530, 22956, 26782, 28695, 34434, 38260, 39060, 40173, 53564, 57390, 59303, 66955, 68868, 80346, 86085, 114780, 118606, 120519, 133910, 160692, 172170, 177909, 200865, 237212, 241038, 267820, 296515, 344340, 355818, 401730, 415121, 482076, 533727, 593030, 602595, 711636, 803460, 830242, 889545, 1067454, 1186060, 1205190, 1245363, 1660484, 1779090, 2075605, 2134908, 2410380, 2490726, 2668635, 3558180, 3736089, 4151210, 4981452, 5337270, 6226815, 7472178, 8302420, 10674540, 12453630, 14944356, 18680445, 24907260, 37360890, 74721780]

約数ペア:

[(1, 74721780), (2, 37360890), (3, 24907260), (4, 18680445), (5, 14944356), (6, 12453630), (7, 10674540), (9, 8302420), (10, 7472178), (12, 6226815), (14, 5337270), (15, 4981452), (18, 4151210), (20, 3736089), (21, 3558180), (28, 2668635), (30, 2490726), (31, 2410380), (35, 2134908), (36, 2075605), (42, 1779090), (45, 1660484), (60, 1245363), (62, 1205190), (63, 1186060), (70, 1067454), (84, 889545), (90, 830242), (93, 803460), (105, 711636), (124, 602595), (126, 593030), (140, 533727), (155, 482076), (180, 415121), (186, 401730), (210, 355818), (217, 344340), (252, 296515), (279, 267820), (310, 241038), (315, 237212), (372, 200865), (420, 177909), (434, 172170), (465, 160692), (558, 133910), (620, 120519), (630, 118606), (651, 114780), (868, 86085), (930, 80346), (1085, 68868), (1116, 66955), (1260, 59303), (1302, 57390), (1395, 53564), (1860, 40173), (1913, 39060), (1953, 38260), (2170, 34434), (2604, 28695), (2790, 26782), (3255, 22956), (3826, 19530), (3906, 19130), (4340, 17217), (5580, 13391), (5739, 13020), (6510, 11478), (7652, 9765), (7812, 9565)]