1803875220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{204521}}^1$

素因数の和:204550

約数の個数: 108

約数和(自身を含む): 6365133684

約数和(自身を除く): 4561258464

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 204521, 409042, 613563, 818084, 1022605, 1227126, 1431647, 1840689, 2045210, 2454252, 2863294, 3067815, 3681378, 4090420, 4294941, 5726588, 6135630, 7158235, 7362756, 8589882, 9203445, 10021529, 12271260, 12884823, 14316470, 17179764, 18406890, 20043058, 21474705, 25769646, 28632940, 30064587, 36813780, 40086116, 42949410, 50107645, 51539292, 60129174, 64424115, 85898820, 90193761, 100215290, 120258348, 128848230, 150322935, 180387522, 200430580, 257696460, 300645870, 360775044, 450968805, 601291740, 901937610, 1803875220]

約数ペア:

[(1, 1803875220), (2, 901937610), (3, 601291740), (4, 450968805), (5, 360775044), (6, 300645870), (7, 257696460), (9, 200430580), (10, 180387522), (12, 150322935), (14, 128848230), (15, 120258348), (18, 100215290), (20, 90193761), (21, 85898820), (28, 64424115), (30, 60129174), (35, 51539292), (36, 50107645), (42, 42949410), (45, 40086116), (49, 36813780), (60, 30064587), (63, 28632940), (70, 25769646), (84, 21474705), (90, 20043058), (98, 18406890), (105, 17179764), (126, 14316470), (140, 12884823), (147, 12271260), (180, 10021529), (196, 9203445), (210, 8589882), (245, 7362756), (252, 7158235), (294, 6135630), (315, 5726588), (420, 4294941), (441, 4090420), (490, 3681378), (588, 3067815), (630, 2863294), (735, 2454252), (882, 2045210), (980, 1840689), (1260, 1431647), (1470, 1227126), (1764, 1022605), (2205, 818084), (2940, 613563), (4410, 409042), (8820, 204521)]