20303140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:293

約数の個数: 96

約数和(自身を含む): 51932160

約数和(自身を除く): 31629020

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 31, 44, 52, 55, 62, 65, 110, 124, 130, 143, 155, 220, 229, 260, 286, 310, 341, 403, 458, 572, 620, 682, 715, 806, 916, 1145, 1364, 1430, 1612, 1705, 2015, 2290, 2519, 2860, 2977, 3410, 4030, 4433, 4580, 5038, 5954, 6820, 7099, 8060, 8866, 10076, 11908, 12595, 14198, 14885, 17732, 22165, 25190, 28396, 29770, 32747, 35495, 44330, 50380, 59540, 65494, 70990, 78089, 88660, 92287, 130988, 141980, 156178, 163735, 184574, 312356, 327470, 369148, 390445, 461435, 654940, 780890, 922870, 1015157, 1561780, 1845740, 2030314, 4060628, 5075785, 10151570, 20303140]

約数ペア:

[(1, 20303140), (2, 10151570), (4, 5075785), (5, 4060628), (10, 2030314), (11, 1845740), (13, 1561780), (20, 1015157), (22, 922870), (26, 780890), (31, 654940), (44, 461435), (52, 390445), (55, 369148), (62, 327470), (65, 312356), (110, 184574), (124, 163735), (130, 156178), (143, 141980), (155, 130988), (220, 92287), (229, 88660), (260, 78089), (286, 70990), (310, 65494), (341, 59540), (403, 50380), (458, 44330), (572, 35495), (620, 32747), (682, 29770), (715, 28396), (806, 25190), (916, 22165), (1145, 17732), (1364, 14885), (1430, 14198), (1612, 12595), (1705, 11908), (2015, 10076), (2290, 8866), (2519, 8060), (2860, 7099), (2977, 6820), (3410, 5954), (4030, 5038), (4433, 4580)]