20191140

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:426

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 43312860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 139, 180, 269, 270, 278, 417, 538, 540, 556, 695, 807, 834, 1076, 1251, 1345, 1390, 1614, 1668, 2085, 2421, 2502, 2690, 2780, 3228, 3753, 4035, 4170, 4842, 5004, 5380, 6255, 7263, 7506, 8070, 8340, 9684, 12105, 12510, 14526, 15012, 16140, 18765, 24210, 25020, 29052, 36315, 37391, 37530, 48420, 72630, 74782, 75060, 112173, 145260, 149564, 186955, 224346, 336519, 373910, 448692, 560865, 673038, 747820, 1009557, 1121730, 1346076, 1682595, 2019114, 2243460, 3365190, 4038228, 5047785, 6730380, 10095570, 20191140]

約数ペア:

[(1, 20191140), (2, 10095570), (3, 6730380), (4, 5047785), (5, 4038228), (6, 3365190), (9, 2243460), (10, 2019114), (12, 1682595), (15, 1346076), (18, 1121730), (20, 1009557), (27, 747820), (30, 673038), (36, 560865), (45, 448692), (54, 373910), (60, 336519), (90, 224346), (108, 186955), (135, 149564), (139, 145260), (180, 112173), (269, 75060), (270, 74782), (278, 72630), (417, 48420), (538, 37530), (540, 37391), (556, 36315), (695, 29052), (807, 25020), (834, 24210), (1076, 18765), (1251, 16140), (1345, 15012), (1390, 14526), (1614, 12510), (1668, 12105), (2085, 9684), (2421, 8340), (2502, 8070), (2690, 7506), (2780, 7263), (3228, 6255), (3753, 5380), (4035, 5004), (4170, 4842)]