20197786180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{823}}^1\times {\mathrm{8581}}^1$

素因数の和:9437

約数の個数: 96

約数和(自身を含む): 49896983808

約数和(自身を除く): 29699197628

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 823, 1430, 1646, 2860, 3292, 4115, 8230, 8581, 9053, 10699, 16460, 17162, 18106, 21398, 34324, 36212, 42796, 42905, 45265, 53495, 85810, 90530, 94391, 106990, 111553, 117689, 171620, 181060, 188782, 213980, 223106, 235378, 377564, 446212, 470756, 471955, 557765, 588445, 943910, 1115530, 1176890, 1227083, 1887820, 2231060, 2353780, 2454166, 4908332, 6135415, 7062163, 12270830, 14124326, 24541660, 28248652, 35310815, 70621630, 77683793, 91808119, 141243260, 155367586, 183616238, 310735172, 367232476, 388418965, 459040595, 776837930, 918081190, 1009889309, 1553675860, 1836162380, 2019778618, 4039557236, 5049446545, 10098893090, 20197786180]

約数ペア:

[(1, 20197786180), (2, 10098893090), (4, 5049446545), (5, 4039557236), (10, 2019778618), (11, 1836162380), (13, 1553675860), (20, 1009889309), (22, 918081190), (26, 776837930), (44, 459040595), (52, 388418965), (55, 367232476), (65, 310735172), (110, 183616238), (130, 155367586), (143, 141243260), (220, 91808119), (260, 77683793), (286, 70621630), (572, 35310815), (715, 28248652), (823, 24541660), (1430, 14124326), (1646, 12270830), (2860, 7062163), (3292, 6135415), (4115, 4908332), (8230, 2454166), (8581, 2353780), (9053, 2231060), (10699, 1887820), (16460, 1227083), (17162, 1176890), (18106, 1115530), (21398, 943910), (34324, 588445), (36212, 557765), (42796, 471955), (42905, 470756), (45265, 446212), (53495, 377564), (85810, 235378), (90530, 223106), (94391, 213980), (106990, 188782), (111553, 181060), (117689, 171620)]