20196897420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{221603}}^1$

素因数の和:221660

約数の個数: 144

約数和(自身を含む): 67906556928

約数和(自身を除く): 47709659508

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 49, 60, 62, 70, 84, 93, 98, 105, 124, 140, 147, 155, 186, 196, 210, 217, 245, 294, 310, 372, 420, 434, 465, 490, 588, 620, 651, 735, 868, 930, 980, 1085, 1302, 1470, 1519, 1860, 2170, 2604, 2940, 3038, 3255, 4340, 4557, 6076, 6510, 7595, 9114, 13020, 15190, 18228, 22785, 30380, 45570, 91140, 221603, 443206, 664809, 886412, 1108015, 1329618, 1551221, 2216030, 2659236, 3102442, 3324045, 4432060, 4653663, 6204884, 6648090, 6869693, 7756105, 9307326, 10858547, 13296180, 13739386, 15512210, 18614652, 20609079, 21717094, 23268315, 27478772, 31024420, 32575641, 34348465, 41218158, 43434188, 46536630, 48087851, 54292735, 65151282, 68696930, 82436316, 93073260, 96175702, 103045395, 108585470, 130302564, 137393860, 144263553, 162878205, 192351404, 206090790, 217170940, 240439255, 288527106, 325756410, 336614957, 412181580, 480878510, 577054212, 651512820, 673229914, 721317765, 961757020, 1009844871, 1346459828, 1442635530, 1683074785, 2019689742, 2885271060, 3366149570, 4039379484, 5049224355, 6732299140, 10098448710, 20196897420]

約数ペア:

[(1, 20196897420), (2, 10098448710), (3, 6732299140), (4, 5049224355), (5, 4039379484), (6, 3366149570), (7, 2885271060), (10, 2019689742), (12, 1683074785), (14, 1442635530), (15, 1346459828), (20, 1009844871), (21, 961757020), (28, 721317765), (30, 673229914), (31, 651512820), (35, 577054212), (42, 480878510), (49, 412181580), (60, 336614957), (62, 325756410), (70, 288527106), (84, 240439255), (93, 217170940), (98, 206090790), (105, 192351404), (124, 162878205), (140, 144263553), (147, 137393860), (155, 130302564), (186, 108585470), (196, 103045395), (210, 96175702), (217, 93073260), (245, 82436316), (294, 68696930), (310, 65151282), (372, 54292735), (420, 48087851), (434, 46536630), (465, 43434188), (490, 41218158), (588, 34348465), (620, 32575641), (651, 31024420), (735, 27478772), (868, 23268315), (930, 21717094), (980, 20609079), (1085, 18614652), (1302, 15512210), (1470, 13739386), (1519, 13296180), (1860, 10858547), (2170, 9307326), (2604, 7756105), (2940, 6869693), (3038, 6648090), (3255, 6204884), (4340, 4653663), (4557, 4432060), (6076, 3324045), (6510, 3102442), (7595, 2659236), (9114, 2216030), (13020, 1551221), (15190, 1329618), (18228, 1108015), (22785, 886412), (30380, 664809), (45570, 443206), (91140, 221603)]