19870380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1187}}^1$

素因数の和:1236

約数の個数: 96

約数和(自身を含む): 63866880

約数和(自身を除く): 43996500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 90, 93, 108, 124, 135, 155, 180, 186, 270, 279, 310, 372, 465, 540, 558, 620, 837, 930, 1116, 1187, 1395, 1674, 1860, 2374, 2790, 3348, 3561, 4185, 4748, 5580, 5935, 7122, 8370, 10683, 11870, 14244, 16740, 17805, 21366, 23740, 32049, 35610, 36797, 42732, 53415, 64098, 71220, 73594, 106830, 110391, 128196, 147188, 160245, 183985, 213660, 220782, 320490, 331173, 367970, 441564, 551955, 640980, 662346, 735940, 993519, 1103910, 1324692, 1655865, 1987038, 2207820, 3311730, 3974076, 4967595, 6623460, 9935190, 19870380]

約数ペア:

[(1, 19870380), (2, 9935190), (3, 6623460), (4, 4967595), (5, 3974076), (6, 3311730), (9, 2207820), (10, 1987038), (12, 1655865), (15, 1324692), (18, 1103910), (20, 993519), (27, 735940), (30, 662346), (31, 640980), (36, 551955), (45, 441564), (54, 367970), (60, 331173), (62, 320490), (90, 220782), (93, 213660), (108, 183985), (124, 160245), (135, 147188), (155, 128196), (180, 110391), (186, 106830), (270, 73594), (279, 71220), (310, 64098), (372, 53415), (465, 42732), (540, 36797), (558, 35610), (620, 32049), (837, 23740), (930, 21366), (1116, 17805), (1187, 16740), (1395, 14244), (1674, 11870), (1860, 10683), (2374, 8370), (2790, 7122), (3348, 5935), (3561, 5580), (4185, 4748)]