25141980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^2$

素因数の和:343

約数の個数: 72

約数和(自身を含む): 75016368

約数和(自身を除く): 49874388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 157, 170, 204, 255, 314, 340, 471, 510, 628, 785, 942, 1020, 1570, 1884, 2355, 2669, 3140, 4710, 5338, 8007, 9420, 10676, 13345, 16014, 24649, 26690, 32028, 40035, 49298, 53380, 73947, 80070, 98596, 123245, 147894, 160140, 246490, 295788, 369735, 419033, 492980, 739470, 838066, 1257099, 1478940, 1676132, 2095165, 2514198, 4190330, 5028396, 6285495, 8380660, 12570990, 25141980]

約数ペア:

[(1, 25141980), (2, 12570990), (3, 8380660), (4, 6285495), (5, 5028396), (6, 4190330), (10, 2514198), (12, 2095165), (15, 1676132), (17, 1478940), (20, 1257099), (30, 838066), (34, 739470), (51, 492980), (60, 419033), (68, 369735), (85, 295788), (102, 246490), (157, 160140), (170, 147894), (204, 123245), (255, 98596), (314, 80070), (340, 73947), (471, 53380), (510, 49298), (628, 40035), (785, 32028), (942, 26690), (1020, 24649), (1570, 16014), (1884, 13345), (2355, 10676), (2669, 9420), (3140, 8007), (4710, 5338)]